Donald Trump brands Egyptair flight crash 'yet another terrorist attack'

Presumptive Republican presidential nominee Donald Trump is weighing in on the crash of the EgyptAir flight that had been travelling from Paris to Cairo, calling it "yet another terrorist attack".

In a Twitter post on Thursday, Mr Trump asked: "When will we get tough, smart and vigilant? Great hate and sickness!"

The flight, with 66 passengers and crew on board, crashed in the Mediterranean Sea off the Greek island of Crete early on Thursday morning.

Looks like yet another terrorist attack. Airplane departed from Paris. When will we get tough, smart and vigilant? Great hate and sickness!

— Donald J. Trump (@realDonaldTrump) May 19, 2016

Egyptian, French and Greek officials have launched investigations into the crash but say it is too early to determine whether it was due to a technical error or an act of terrorism.