Gatwick Airport says its South Terminal is reopening to passengers after a security alert was cleared by police
But it warns there are some delays and cancellations and passengers should contact their airline for any updates on flights
Sussex Police says a "suspect package" found in luggage has been "made safe" after a bomb disposal team was deployed
It adds that two people who were detained have now been allowed to continue their journeys
Trains are also starting to call at Gatwick Airport again
We're now seeing images coming through on social media of the evacuation at Gatwick Airport.
Some are saying they are impressed with the smooth running of the process, including the provision of water for people who have been evacuated.
Passengers were evacuated from the airport's South Terminal at 10:55 GMT this morning.
Alex Boyd
Reporting from London Victoria railway station
There are not many queuing for cancelled Gatwick trains at London Victoria station, but there are a few people around and police officers are manning the barriers here.
Trains are still not calling at Gatwick but are running through the airport station, albeit very delayed.
Station announcements here are advising people not to travel towards the area and wait at Victoria for now.
Gatwick Airport is responding to passengers on concerns on social media platform X. , external
So far, the airport has confirmed that the North Terminal is not affected by the South Terminal evacuation, and that incoming planes are able to land.
The account says it will continue to provide updates using the platform.
National Rail says no services will now be stopping at Gatwick, as police continue to investigate the incident which led to the evacuation of the airport's South Terminal.
Southern Rail has advised passengers not to travel to Gatwick, with a spokesperson saying: "At present, the station and airport are being evacuated whilst the police are dealing with an incident," they said.
"We would recommend delaying your journey until later this morning."
Thameslink, Southern and Gatwick Express services are all affected at the moment.
London Gatwick Airport's South Terminal was evacuated at 10:55GMT this morning following a security incident.
Incoming planes are still able to land at the airport at the moment.
The airport says the evacuation is a precaution while it investigates, with passengers unable to enter the South Terminal while the investigation is in progress.
The airport says the North Terminal is operating normally.
National Rail says no trains will be stopping at the airport station while the incident is investigated.
Stay with us and we will keep you updated.
The Gatwick Express rail service, which serves the airport from central London and England's south coast, will not be serving the airport "until further notice", according to an official post on X.
The station which serves the airport has also been evacuated and passengers are advised to delay their journeys until later this morning.
Passengers on their way to Gatwick had initially been advised to travel to nearby stations and get a bus, but local busses are now also affected by the security incident and unable to run to Gatwick Airport.
We will be providing live coverage, as we hear that London’s Gatwick Airport has evacuated a large part of its South Terminal following a security incident.
The airport says that passengers will not be able to enter the terminal while this is going on and "safety and security of our passengers and staff remains our top priority".
It adds that it is working hard to resolve the issue as quickly as possible.
Stay with us as we continue to bring you live updates.