Thousands of passengers are trapped in Gatwick as the police continue the search for a drone operator that shut down the airport.
Flights were stopped after a drone was seen over the airfield on Wednesday.
The police have not found the device or the pilot yet, but intend to shoot the plane.
The Gatwick bosses have asked those who travel to check their flight status before they arrive at the airport. [1
On Thursday, Gatwick's Chief Operating Officer, Chris Woodroofe, said 120,000 people have been flying since the runway's demise.
The staff worked on contingency plans in case flights were grounded again.
Passengers complain that temperatures in the South Terminal have been "frozen" while others have been stuck abroad after domestic flights. Flights have either been canceled or diverted.
Dozens of passengers contacted the BBC, saying the uncertainty had led them to abandon festive travel plans or spend extra money on new flights and hotel stays.
The airline Ryanair said they would all change from its Gatwick flights scheduled to fly in and out of Stansted Airport on Friday.
Secretary of Transportation Chris Grayling said that the government "is doing everything possible to collude with other airports".
The measures included lifting the night – flight restrictions to allow "more planes to enter and exit the country," he said.
- Gatwick's runway was closed on Wednesday shortly after 21:00 when two drones were spotted over the perimeter fence at the airfield.
- On Thursday, it was reopened at 03:01 am again about 45 minutes later due to further sightings
- Outbound flights were carried out on the ground while incoming aircraft were diverted to other airports [23,605,9023] On Wednesday, over 10,000 passengers were over Night affected
- . On Thursday, police said the drone flight was "a deliberate act to disrupt the airport," but there was no evidence that it was terrorism
- More than 20 police units from two armed forces were looking for that Perpetrator who was able to spend up to five years in prison.
- The military, with "a number of unique skills", was deployed to support the police operation.
- On Thursday night, 120,000 people had canceled flights and police said there had been more than 50 sightings of the drone. The runway was closed first
The search for the drone
Sussex police have been jailed with the drone in a cat-and-mouse game since the airport closed.
Despite numerous sightings, the device that investigators believe has been "adapted and developed" to cause deliberate disruption
Det Ch Supt Jason Tingley said the police have plans for armed officers to use the drone to shoot down, reevaluated after other methods have failed.
The measure was initially rejected because of the risk of "stray bullets," but became a "tactical option" again after other methods failed, the detective said.
The officers also followed investigation lines to "specific groups"
"We will do what we can to take the drone from the skies," he said.
Supt Justin Burtenshaw, chief of the armed police for Sussex and Surrey, said the search for the operator of the drone was "a difficult and challenging" perspective.
"Every time we think we're approaching the OR Erator disappears the drone; When we try to reopen the airfield, the drone reappears, "he said.
As a result of a call for information, Sussex police said it had been swamped with calls, but asked people to contact information that focused on the identity or location of the drone operator. "
What has happened to the passengers?
Travelers could not fly in and out of Gatwick.
Thousands were detained for hours in the airport terminal building, sleeping on floors and benches.
Some who spoke with the BBC spoke of a couple hoping for honeymoon in New York and a seven-year-old who was to fly to Lapland.
Others are stuck abroad.
Earlier this week, Gatwick predicted a "record-breaking" festival. Most days, tens of thousands of passengers were expected.
The airport chief, Mr. Woodroofe, refused to comment on the possibility that those affected by the chaos would receive compensation.
The Civil Aviation Authority stated that the event was an "exceptional event" and therefore airlines were not required to pay passengers a financial compensation.
Alex Neill, of the Consumer Rights Group, who said, "people could still be entitled to meals, refreshments, lodging or transfers".
Airports and Drones: The Law
It is forbidden to fly a drone within 1 km of an airport or airfield boundary and fly above 120 m – what The risk of collision with a manned aircraft increases – is also prohibited.
Threatening the safety of an aircraft is a criminal offense that can be sentenced to a five-year prison sentence.
The number of aircraft incidents involving drones has increased dramatically in recent years as the popularity of the devices has increased.
In 2013, there were no incidents at nearly 100 in the last year.
Mr. Grayling said the events in Gatwick are "nothing that has not been experienced in this country", although drones were a problem elsewhere in the world.
The government now looked for "furthe go" "with drone control," he said, taking into account age limits for users.
He added, "Those who try to do the same again [as at Gatwick] should expect to spend a long time in prison."  British Airprox Board investigates drone incidents and keeps a log of all reports.
In one incident last year, for example, a pilot flying over Manchester saw a red "football-sized" drone on the left side of the plane.
On another aircraft, an aircraft that had left Glasgow narrowly missed a drone. The pilot said in this case that the crew had warned for only three seconds and that there was "no time to take action".
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