In a United States court, OpenAI chief executive Sam Altman has rejected claims from fellow tech mogul Elon Musk that he betrayed the artificial intelligence company's original vision. Tuesday marked the start of Altman's testimony in a contentious trial unfolding in Oakland, California, between some of tech's richest and most powerful titans. He alleged that OpenAI's leader persuaded him to invest $38bn, based on a goal of improving humanity, only to see the company pivot to a for-profit venture in 2019. On the witness stand on Tuesday, Altman instead framed Musk as a competitor obsessed with exercising control over OpenAI. "It does not fit with my conception of the words'stealing a charity' to look at what has actually happened here," Altman told the court.

What are Russia's gains from the Iran war? 'We are not losers; we are winners' Russia and Ukraine have resumed air attacks after a United States-brokered three-day truce expired, with President Volodymyr Zelenskyy saying more than 200 drones were used to attack Ukraine overnight. Russian aerial attacks across Ukraine's Dnipropetrovsk region on Tuesday morning killed at least one person and injured four others, according to regional administration chief Oleksandr Ganzha. Russia also carried out attacks on the regions of Kharkiv, Zhytomyr, Sumy and Chernihiv, according to authorities. More than 200 long-range drones were used in the wave of attacks, Zelenskyy said. "Russia itself chose to end the partial silence that had lasted for several days," he said in a post on X. Russia's military, meanwhile, said its defences downed 27 Ukrainian drones over the regions of Belgorod, Voronezh and Rostov.

What are Russia's gains from the Iran war? 'We are not losers; we are winners' The group had reportedly been starving on the front line after up to 17 days without food deliveries and months without rotation. The fighters were holed up on the left, eastern bank of the Oskil River in the southeastern Donetsk region after Russian bombs destroyed the bridges connecting them to their brigade on the right bank. "They weren't listened to on the radio, or perhaps no one wanted to listen to them. My husband shouted and begged, saying there was no food and water," Silchuk wrote. She did not respond to Al Jazeera's request for an interview.

What are Russia's gains from the Iran war? 'We are not losers; we are winners' Who is Gerhard Schroeder, Putin's pick for Ukraine peace talks mediation? Russian President Vladimir Putin has suggested that former German Chancellor Gerhard Schroeder could coordinate talks with the European Union to secure a peace deal in Ukraine - a proposal met with scepticism by EU officials. European Council President Antonio Costa said recently he believed there was "potential" for the EU to negotiate with Russia and to discuss the future of Europe's security architecture. A day later, the Russian leader said the four-year-old war may be "coming to an end", adding that he was ready to hold direct talks with his Ukrainian counterpart, Volodymyr Zelenskyy, in Moscow or a neutral country. Speaking after Saturday's celebrations for Victory Day, which marks Russia's victory over Nazi Germany in 1945 at the end of World War II, Putin added he would be willing to meet Zelenskyy only once the terms of a peace agreement had already been settled.

What are Russia's gains from the Iran war? 'We are not losers; we are winners' At least three people have been killed in Russian attacks on Ukraine in the past 24 hours despite a three-day ceasefire announced by US President Donald Trump that came into effect on May 9. Regional authorities on Sunday reported one death each in Ukraine's Zaporizhia, Dnipropetrovsk, and Kherson regions. Governor Oleksandr Prokudin confirmed the death on Telegram, saying the woman had been struck while walking down the street. Seven people, including a child, have also been injured across the region in drone or artillery attacks since early Saturday, he added. Ivan Fedorov, the governor of the southeastern Zaporizhia region, said one person had been killed and three others injured by artillery and drone attacks in the past 24 hours. In the northeastern Kharkiv region, Governor Oleh Syniehubov said eight people, including two children, were injured in drone attacks on the city of Kharkiv and nearby settlements.

How well do you know Iran? A fragile ceasefire in the US-Israel war on Iran is coming under growing strain as several Gulf countries have reported drone attacks. Qatar said on Sunday that a drone struck a cargo ship in Qatari waters, sparking a fire, while Kuwait and the United Arab Emirates said they repelled drone attacks. Qatar's Ministry of Defence said the freighter had been arriving in the country's waters from the UAE capital, Abu Dhabi, and was hit by a drone northeast of the port of Mesaieed. "The vessel continued its journey toward Mesaieed Port after the fire was brought under control," the ministry said. The United Kingdom Maritime Trade Operations (UKMTO) said a bulk carrier reported being struck by an "unknown projectile", and a small fire had been extinguished, but there were no casualties from the incident.

Days before the cruise ship affected by a hantavirus outbreak is set to dock in southern Tenerife in the Canary Islands, locals are expressing a mix of concern and calm. According to Oceanwide Expeditions, there are currently no symptomatic individuals on board the ship. Iran's president says he has spoken to the country's Supreme Leader

'This is an apartheid regime' A Palestinian boy mourns his father, one of three people killed in an Israeli strike on a security post in Gaza. The attack is part of ongoing Israeli violence, despite a fragile ceasefire, which has killed at least 846 Palestinians, according to Gaza's Health Ministry. Iran's president says he has spoken to the country's Supreme Leader

Three ISIL-linked Australian women have been arrested at airports in Melbourne and Sydney based on allegations of slavery and terrorism. They were amongst four women and nine children arriving from Syria after spending years in al-Roj Camp near the border between Syria and Iraq. Iran's president says he has spoken to the country's Supreme Leader US court releases alleged Jeffrey Epstein'suicide note'

The EU says it is closely monitoring suspected hantavirus cases aboard the Dutch cruise ship MV Hondius and is coordinating with member states and health authorities to respond if needed. Iran's president says he has spoken to the country's Supreme Leader