EgyptAir Flight MS804 crash: what we know

EgyptAir Flight MS804, en route to Cairo, disappeared over the Mediterranean Sea Thursday morning, about three hours after it took off from Paris's Charles de Gaulle airport.

Officials confirmed the plane crashed, after reports that it swerved before plunging off the radar above the Mediterranean.

It was a sudden disappearance 10 miles into Egyptian airspace – Greek air traffic controllers said they had maintained communications with the plane minutes before handing off controls.

This is the second major incident for EgyptAir this year, after another flight was hijacked in late March.

What we know:

• According to EgyptAir, Flight MS804, bound for Cairo from Paris's Charles de Gaulle airport at around 11 pm Wednesday, lost contact with the airline 10 miles into Egyptian airspace, EgyptAir reported. The plane was flying at 37,000 feet when it disappeared from the radar.
• Search and rescue teams are currently looking for the plane, which had 66 passengers aboard, including 10 crew members. Among the passengers were 30 Egyptians, 15 French citizens, two Iraqis, one Briton, one Belgian, one Sudanese, one Chadian, one Portuguese, one Algerian, one Canadian, one Kuwaiti, and one Saudi, EgyptAir reported. Three children were on board.
• French President François Hollande confirmed the plane crashed and disappeared, according to a statement first translated by the BBC.
• France plans to send ships and planes to reinforce Egypt's rescue teams, Hollande said in his statement.

What we don't know:

• Search and rescue teams are currently underway to locate the missing plane and its crash site.
• An investigation is underway to uncover why the plane crashed. Hollande said they have not ruled out the possibility of this being a terrorist attack. "No hypothesis should be ruled out," he said in his statement. However, EgyptAir denied all such reports at this time.