LONDON (Blacquire) -\u00a0London's Gatwick Airport closes again due to suspected drone sighting after brief opening. Airport first shut down on Wednesday evening\u00a0due to reports of two drones flying over the airfield. Although the airport reopened in the early morning hours, it remained shut for most of Thursday.\r\nSecond Busiest Airport in UK\r\nGatwick Airport (London Gatwick) is located near Crawley in West Sussex, south-east England,\u00a0 about 30 miles south of Central London. After London Heathrow, it is the second-busiest airport by total passenger traffic in the United Kingdom.\r\nDrone Sightings\r\nAirport officials shut down Gatwick's runway since Wednesday night, when reports of repeated drone flights within the airport came in.\r\n\r\nPolice confirmed that it was not terror-related. However, they said that it was a "deliberate act" of interference and the suspects used "industrial specification" drones.\r\n\r\nREAD:\u00a0Donald Trump Sends Out Funny Tweet On Farm Bill, But The Replies Are Funnier\r\n\r\nOver 100,000 passengers had delayed flights on Thursday and initial reports indicated that the disruption could last "several days".\r\nReopening and second closure\r\nOn early Friday, airport officials sent out communication that the runway was open again. They clarified that only a limited number of aircraft would depart and arrive.\r\n\r\nAuthorities report that they had not made any arrests or found the drone operator.\r\n\r\nHowever, new reports that officials spotted another drone at around 5 p.m on Friday led to the second closure. A spokesman confirmed to Blacquire that flights would be suspended again, albeit temporarily.\r\n\r\nIn the United Kingdom, the unauthorized use of drones can result in fines and imprisonment. Many have called for tougher measures after the disruptions at Gatwick.