Greek TV has released the first pictures of debris from EgyptAir flight MS804, which crashed early Thursday morning in what is looking increasingly like a terrorist attack.

Greek emergency teams discovered the first pieces of debris some 230 nautical miles from the island of Crete – around 100 nautical miles from where ground control initially lost contact with the Airbus A320.

At least two pieces of debris have been discovered floating in the Mediterranean.

Authorities in Egypt and intelligence analysts have said terrorism is the likeliest cause of the crash.

All 66 crew members and passengers are believed to have died in the crash, which occurred early Thursday morning not long after the plane entered Egyptian airspace.

The Airbus A320 plane took off from the Charles de Gaulle Airport in Paris at 11:09 p.m. (CEST) last night, carrying 56 passengers and 10 crew members.

It was flying at 37,000ft when it disappeared from the radar at 2:29 a.m.

However, Egyptian authorities revealed the plane emitted emergency signals some two hours later. At around the same time, sailors in a ship in the Mediterranean claimed they saw a massive fireball streaking through the sky.

Egypt’s civil aviation authority confirmed a mid-air explosion had occurred, and after initially saying they weren’t ruling any causes out admitted that a terrorist attack was more likely the cause than a technical failure.

Greek Defense Minister Panos Kammenos told reporters the doomed flight had “turned 90 degrees left and then a 360-degree turn to the right,” before plunging more than 25,000ft and disappearing from the radar.

The fact that debris was found so far from where the plane had been flying when contact was lost – together with the emergency emissions two hours later – have led many to speculate on the possibility of a suicide bomber or other brief hijacking scenario before the plane finally went down, though nothing has yet been confirmed.