Pro-Iranian forces in Syria have said they have a "long arm" to respond to further United States air strikes on their positions, after tit-for-tat missile and drone attacks in Syria over the last 24 hours. The online statement, released late on Friday and signed by the Iranian Advisory Committee in Syria, said US air strikes had left several of their fighters dead and wounded, without specifying the fighters' nationality. "We have the capability to respond if our centres and forces in Syria are targeted," the statement said. On Friday night, two Syrian opposition activist groups reported a new wave of US air attacks on eastern Syria, which hit positions of Iran-backed militias, after rockets were fired at bases in Syria housing US troops. Several US officials, however, denied that attacks were launched late on Friday.

Nikki Haley, presidential candidate and former U.S. ambassador to the U.N., weighs in after President Biden authorized an air strike in response to an Iranian drone that killed an American. The U.S. can no longer take a reactive stance toward Iran after a new Pentagon report revised the total number of troops killed by Iran-backed groups continues to rise, experts told Fox News Digital. "Iran's regional strategy of working through proxies and carve outs is continuing unabated," Behnam Ben Taleblu, a senior fellow and Iran expert at the Foundation for Defense of Democracies, said. "The open question is, when will the Biden administration ditch tit-for-tat strikes and work to rollback Iran's Shiite militia network in the heartland of the Middle East?" President Biden ordered a series of retaliatory precision airstrikes in Syria on Thursday, reportedly killing eight Iranians, after Iran's Islamic Revolutionary Guards Corps crashed a UAV into a building, killing a U.S. contractor and wounding six other Americans. U.S. intelligence assessed the UAV that crashed into a coalition base, which killed the contractor, was of Iranian origin -- so President Biden authorized the military to retaliate, the Pentagon said.

U.S. CENTCOM Commander General Michael Kurilla told senators Thursday that the Pentagon has seen an "increase recently in the unprofessional and unsafe behavior of the Russian air force." The U.S. military carried out several airstrikes in Syria on Thursday in response to a drone strike Iranian forces conducted earlier in the day on a coalition base that killed one American. The Defense Department said Iran's Islamic Revolutionary Guards Corps crashed a UAV into a building near Hasakah in northeast Syria at approximately 1:38 p.m. local time, leaving one U.S. contractor dead. The attack also wounded five U.S. service members and another U.S. contractor. U.S. intelligence assessed the UAV and determined it to be of Iranian origin -- so President Biden authorized the military to retaliate, the Pentagon said.

North Korea has tested a new underwater nuclear-capable attack drone designed to unleash a "radioactive tsunami" that would destroy enemy naval vessels and ports, state media has reported. During a military exercise conducted this week under the guidance of the country's leader Kim Jong Un, North Korea's military deployed and test-fired the new weapons system, the mission of which was to test the ability to set off a "super-scale" destructive blast and wave, the country's state news agency KCNA said on Friday. "This nuclear underwater attack drone can be deployed at any coast and port or towed by a surface ship for operation," KCNA said. The news agency said that during the exercise, the drone was put in the water off South Hamgyong province on Tuesday and cruised underwater for 59 hours and 12 minutes, at a depth of some 80 to 150 metres (260 to 490 feet), before detonating in waters off its east coast on Thursday. KCNA did not elaborate on the drone's nuclear capabilities.

Gen. Pat Ryder told reporters Thursday that deterrence of North Korea "continues to work," hours after the Kim regime launched another intercontinental ballistic missile. North Korea claimed on Friday morning that it tested a "nuclear underwater attack drone" this week amid joint U.S. and South Korean military drills, according to state media outlet Korean Central News Agency. The new underwater weapon is designed to "stealthily infiltrate into operational waters" and target naval striker groups and enemy ports, North Korea claimed. "This nuclear underwater attack drone can be deployed at any coast and port or towed by a surface ship for operation," KCNA said in a statement. A test warhead exploded in the waters off Hongwon Bay on Thursday afternoon, North Korea claimed.

Check out what's clicking on Foxnews.com. Russia stepped up its missile and drone attacks against Ukraine on Wednesday, killing students and other civilians, in a violent follow-up to dueling high-level diplomatic missions aimed at bringing peace after 13 months of war. "Russia is shelling the city with bestial savagery," President Volodymyr Zelenskyy wrote in a Telegram post accompanying video showing what he said was a Russian missile striking a nine-story apartment building on a busy road in the southeastern city of Zaporizhzhia. "Residential areas where ordinary people and children live are being fired at." At least one person was killed in the attack shown in the Zaporizhzhia video, apparently recorded by closed circuit TV cameras.

Russia has said that a division of its Bastion coastal defence missile systems has been deployed to Paramushir, one of the Kuril Islands in the north Pacific, some of which Japan claims as its territory. The move is part of a wider strengthening of Russia's defences in its vast far eastern regions, Defence Minister Sergei Shoigu said on Wednesday, partly in response to what he called United States efforts to "contain" Russia and China. Moscow's move also comes after high-level visits by Asian leaders to both sides of the Ukraine war. Prime Minister Fumio Kishida of Japan, a close US ally and a key Chinese rival in East Asia, made a surprise trip to Ukraine this week, which some observers said was an attempt to upstage Chinese President Xi Jinping's state visit to Russia. "To contain Russia and China, the United States is significantly increasing its military presence in the Asia-Pacific region, strengthening its political and military links with its allies, continuing to create a new American security architecture in this region," Shoigu said in a video of his address to Russia's top brass, published by the defence ministry.

Mark Kelly, D-Ariz., weighs in on challenges Border Patrol faces as more migrants flood the southern border on'Special Report.' The crash between a Russian fighter jet and a U.S. drone likely resulted from the pilot's aggression and "incompetence," according to former astronaut and Navy captain, Sen. Mark Kelly. "Look at the level of incompetence – I mean when we saw the flanker yesterday, which basically had a midair with the MQ-9 [drone], with a reaper … I spent 15 years in the astronaut office, I used to fly with Russian fighter pilots in the backseat of my plane," Kelly, D-AZ., told Fox News chief political anchor and host of "Special Report with Brett Baier" during an interview Thursday. "The level of incompetence in the Russian pilots that I flew with was shocking to me." Russia has denied that its plane crashed into the U.S. drone despite video evidence showing the plane make at least two fly-bys, including one in which it appeared to dump fuel on the drone before the feed abruptly cut off, and the drone crashed into the Black Sea. On Friday, Russian Minister of Defense Sergei Shoigu reportedly presented the pilots responsible for crashing the drone with state awards, saying the pilots prevented the drone from "violating the boundaries of the temporary airspace regime established for the special military operation," referring to the invasion of Ukraine.

Former U.S. Amb. to NATO Kurt Volker says the Russian fighter jet collision was'intentional' and requires a'firm response' from the U.S. The Russian government has awarded the pilots involved in the harassment and crash of a U.S. drone in international airspace. Russian minister of Defense Sergei Shoigu presented state awards to the fighter jet pilots responsible for downing a U.S. drone over the Black Sea earlier this week. Russian President Vladimir Putin, right, and Russian Defence Minister Sergei Shoigu, left, attend a wreath-laying ceremony at the Eternal Flame and the Unknown Soldier's Grave in Alexander Garden during an event marking Defender of the Fatherland Day in Moscow. In an official statement, the Ministry of Defense commended the pilots for preventing the drone from "violating the boundaries of the temporary airspace regime established for the special military operation." The statement accuses the U.S. drone of flying with its transponders off.

Intensified spying by American drones near Ukraine could lead to an escalation and Russia will respond proportionally to future intelligence-gathering operations, Moscow's defence chief has told his US counterpart. The comments came in a phone conversation on Wednesday between Sergei Shoigu and Pentagon boss Lloyd Austin after the United States accused a Russian Su-27 fighter jet of colliding with one of its Reaper surveillance drones, forcing it to crash into the Black Sea. Russia denied it deliberately brought the unmanned aerial vehicle down. "It was noted that flights by American strategic lethal drones by the Crimea coastline were provocative in nature and created pre-conditions for an escalation of the situation in the Black Sea zone," a defence ministry statement quoted Shoigu as saying. "[Russia] has no interest in such a development, but it will continue to respond proportionately to all provocations."