A British Airways flight has been held on the tarmac of a Paris airport after a "direct threat" to the plane, a passenger has said.
Flight number BA0303 to London Heathrow was stopped at Charles de Gaulle airport and surrounded by police and fire vehicles at around 8am UK time this morning.
Authorities have since determined the incident was a false alarm.
British traveller James Anderson, 20, tweeted a snap of the plane and security services.
He posted: "On British Airways flight BA0303, currently being held on tarmac at Paris due to security threat, surrounded by police and fire vehicles."
He added: "Apparently an individual has made a direct threat to this aircraft. "We will all be led off the aircraft and baggage searched in due course."
He then posted: "Everybody's been individually searched by armed officers and given all clear. Now hold luggage being searched by dogs."
Mr Anderson said: "Initially the pilot told us there were technical issues. "We were waiting on the plane for around an hour.
"We were then told the aircraft had to move to another part of the airport.
"That's when we noticed police and fire vehicles quickly surrounded the plane and dozens of armed officers and firefighters got out.
"The pilot then said there had been a direct security threat involving our flight specifically."
A spokesman for France's national gendarme service said police and firefighters rushed to the scene after receiving a "security alert".
The spokesman said the plane was evacuated, each passenger and each bag was checked and the plane was thoroughly examined but no threats were found.
Authorities determined it was a false alarm.
British Airways said: "The safety and security of our customers and crew is always our top priority.
"Additional security checks are being carried out as a precaution.
"We would never operate a flight unless it is safe to do so."