Sussex Police have arrested two people in connection with the "criminal use of drones" at London's Gatwick Airport.
It comes after three days of disruption affected tens of thousands of passengers during the pre-Christmas getaway.
The man, 47, and the woman, 54, who are from Crawley in West Sussex, were arrested in the town - around five miles from the airport - at about 10pm last night.
Drones were first sighted buzzing around Britain's second-busiest air hub on Wednesday, forcing the runway to close and causing chaos for over 140,000 people.
Superintendent James Collis said: "Every line of enquiry will remain open to us until we are confident that we have mitigated further threats to the safety of passengers."
A Gatwick spokesman said the airport planned to run a full schedule of 757 flights carrying 124,484 passengers today.
But he warned that passengers should expect some delays and cancellations "as we continue to recover our operations following three days of disruption".
#GatwickDrones | Around 10pm today we made 2 arrests in connection with criminal drone activity at Gatwick Airport. Proactive investigations are still on-going: we urge the public to contact us if they believe they have information that can aid us further. https://t.co/dOmKw4GnfO— Sussex Police (@sussex_police) December 22, 2018
Police urged passengers and the public to remain vigilant around the airport, south of London, and report any further drone sightings.
Flights resumed on Friday but were briefly halted after a new drone sighting forced planes to be grounded as a precautionary measure.
Sussex Police said officers had been using "a range of tactics" to hunt for the mystery drone operators and "build resilience to detect and mitigate further incursions".
The dangers posed by drones include the possibility of a device smashing into a passenger plane or being sucked up into an engine where its highly flammable lithium battery could cause a catastrophe.
The army was called in on Thursday to offer support, with the UK defence ministry deploying what was described only as specialist equipment.
UK Aviation minister Elizabeth Sugg said that the government planned to "introduce new laws to ensure that drones are used safely and responsibly", according to The Daily Telegraph newspaper.
Under a new British law, drones cannot be flown near aircraft or within a kilometre of an airport, or at an altitude of over 400 feet.
Violators face up to five years in prison for endangering an aircraft..