British Airways Flight BA274 was heading for London when it was diverted Twitter/@illmaticp

A British Airways flight from Las Vegas to London has been forced to land in Montreal following reports of a bomb threat.

British Airways Flight BA274 was due to arrive at Heathrow Airport at 3.25pm GMT after taking off from Las Vegas, but was diverted to Montréal–Pierre Elliott Trudeau International Airport as a precaution. The plane has now landed and all 312 passengers have disembarked.

A British Airways spokesperson said: "Our flight from Las Vegas to Heathrow landed safely this morning at Montreal and customers left the aircraft as normal after the captain took the decision to divert the aircraft as a precaution.

"The safety and security of our customers, crew and aircraft are our highest priorities at all times. We are looking after the customers and will provide hotel rooms for them and will rebook them to other flights as soon as we can. We are working with the Canadian authorities and giving them our fullest support."

Montreal police are currently at the airport searching the plane following the threat. A spokesperson for Pierre Elliott Trudeau International said there is "no impact on regular operations" at the airport following BA274's diversion.