Sussex Police have released the man and woman arrested on December 21st after determining that they're "no longer suspects" behind the multiple incidents. Don't anticipate new suspects in the future, either. Detective Chief Superintendent Jason Tingley said his force continued to "actively follow lines of investigation," but didn't hint at where those might lead. In a conversation to Sky News, Tingley said officers had found a damaged drone at the airport in Horley and were on an "expedited" effort to examine that drone for evidence. There's an increased financial motivation to bring the perpetrators in, at least.

LONDON - London's Gatwick Airport was operating without problems Sunday, but the fugitive drone operators who brought incoming and outgoing flights to a standstill over multiple days remained at large -- and a potential threat -- after police cleared two local residents who were arrested as suspects. Sussex Police were hopeful they had halted the disruptive and costly drone incursions during one of the heaviest travel periods of the year with Friday's arrests of a couple who live near the airport. But they were released Sunday, and police said they were no longer suspects. Tens of thousands of passengers suffered through long flight delays or were stranded by cancellations after two drones were reported seen above the airfield at Gatwick on Wednesday night, prompting an immediate suspension of all air traffic. Sussex Chief Detective Jason Tingley said Sunday he could not rule out new drone activity at Gatwick or other U.K. airports.

A man and woman arrested in connection with drone sightings that grounded flights at Gatwick Airport have been released without charge. The 47-year-old man and 54-year-old woman, from Crawley, West Sussex, were arrested on Friday night on suspicion of "the criminal use of drones". Sussex Police said the pair were no longer suspects. A damaged drone found close to the airport on Saturday was being forensically examined, the force added. Det Ch Supt Jason Tingley said it was "a working assumption" the device could be connected to their investigation, but officers were keeping "an open mind".