Police and fire vehicles have reportedly surrounded the plane following reports of a “direct threat” while the flight has been evacuated.
Passengers tweeted their ordeal from the tarmac.
James Anderson tweeted: “On British Airways flight BA0303, currently being held on tarmac at Paris due to security threat, surrounded by police and fire vehicles.
“Apparently an individual has made a direct threat to this aircraft. We will all be led off the aircraft & baggage searched in due course.”
Mr Anderson, 20, said armed officers are searching passengera and luggage with sniffer dogs.
He said: “Everybody’s been individually searched by armed officers and given all clear. Now hold luggage being searched by dogs.”
This is a breaking news story. Please refresh the page for updates.