Gatwick Airport train station has been evacuated due to overcrowding, the airport has said.
Passengers are currently unable to enter the station, as trains both northbound and southbound through the station have been suspended.
Rail operator Southern, who operate a number of services at the West Sussex airport, said anyone travelling to the airport is being advised to delay their journey until later where possible.
It added that journeys may take up to two hours longer than usual and passengers are not recommended to travel on Monday if possible.