Canada leads countries pressing for crash access

Mourners carry coffins through the streets of Tehran during a mass funeral after the warship USS Vincennes shot down Iran Air Flt. 655 over the Gulf killing all 290 people on board

Tehran also said the probe might take one or two years.

An Iranian official denied a missile hit the plane and called on both the USA and Canada to release data backing their allegations.

Iran's civil aviation chief, however, said he was "certain" that the plane was not hit by a missile.

Speaking to reporters at the White House, US President Donald Trump said he had suspicions that "somebody could have made a mistake", without going into detail.

The airliner could have been mistaken for a threat, said four U.S. officials, speaking on condition of anonymity to discuss sensitive intelligence.

A statement from Foreign Secretary Dominic Raab said: "Given the body of information that UIA Flight 752 was shot down by an Iranian Surface to Air Missile, and the heightened tensions, we are now advising British nationals not to travel to Iran".

"The evidence indicates that the plane was shot down by an Iranian surface-to-air missile".

Mr Morrison also said it appeared to be a mistake: "All of the intelligence as presented to us today does not suggest an intentional act".

He also said Iran may request help from worldwide experts if it is not able to extract the recordings from the "black boxes".

The footage, which The New York Times said it had verified, shows a fast-moving object rising at an angle into the sky before a bright flash is seen, which dims and then continues moving forward.

Iran denied the airliner had been hit by a missile, saying such reports were "psychological warfare against Iran". The assessment from United States officials came as Tehran released an initial report into the incident that said the pilots did not put out a call for help, but had been trying to return to the airport when the aircraft went down. Washington and Ottawa do not have diplomatic relations with Tehran.

Investigations into airliner crashes can take months and initial reports in 24 hours are rare.

Canada's transportation safety board on said yesterday it had accepted an invitation from Iran's civil aviation authority to join the inquiry.

The crash plane was built in 2016 and is the prior generation of the 737 before the MAX.



Other news