(BBC News) A 47-year-old man and 54-year-old woman from Crawley are being questioned over multiple drone sightings that brought Gatwick Airport to a standstill.
Flights were grounded for more than 36 hours when drones were first spotted close to the runway on Wednesday night.
The airport has since reopened and flights were operating on schedule, but there were still long queues and some knock-on delays, a spokesman said.
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Police are searching a house in Crawley and the pair remain in custody.
They were arrested on Friday evening and were being questioned on suspicion of disrupting civil aviation "to endanger or likely to endanger safety of operations or persons", Sussex Police said.