EgyptAir plane disappearance: What we know

The Egyptian army said wreckage from EgyptAir Flight 804 was found 180 miles from the Egyptian coastal city of Alexandria on Friday, a day after the plane disappeared from radar over the Mediterranean Sea.

Here's what we know so far:

What has been found from the downed plane?

Egyptian army spokesman  Brig. Gen. Mohammed Samir said in a statement posted on his Facebook page Friday that Egyptian planes and navy vessels found “personal belongings of the passengers and parts of the plane debris.” He said a recovery process was under way. Greek Defense Minister Panos Kammenos said the Egyptian navy found debris, two airlines seats and body parts. The Egyptian military said it was sweeping the area for the plane's black box recorders.

How many people were on board?

The Airbus A320, which was flying from Paris to Cairo, had 56 passengers and 10 crew members on board. EgyptAir said the passengers consisted of 15 French, 30 Egyptians, two Iraqis, one Briton, one Kuwaiti, one Saudi, one Sudanese, one Chadian, one Portuguese, one Belgian, one Algerian and one Canadian. Officials said two babies were on the plane. No Americans were on board. One of the passengers was Egyptian-born Ahmed Helal, a plant manager at Procter & Gamble's manufacturing facility in Amiens, northern France. Australian Minister of Foreign Affairs Julie Bishop said that the Briton who was on the flight is also a dual citizen of Australia.

Where was the plane last detected?

The Airbus A320 was flying at 38,000 feet around 175 miles off the Egyptian coast when it suddenly swerved and lost altitude, Greek Defense Minister Panos Kammenos said. The plane turned 90 degrees left, then 360 right before dropping several thousand feet. Its position was lost at about 10,000 feet.

Is terrorism to blame?

Officials have not confirmed what caused the crash, but some have speculated that terrorism could have been a factor. Egyptian Civil Aviation Minister Sherif Fathi said the possibility of a terror attack as the cause of the crash is "higher than that of a technical error." Other experts have also speculated that the plane was likely brought down by terrorists. John Goglia, a former U.S. National Transportation Safety Board member, said a bomb was the likely cause because no distress call appears to have been made, indicating a sudden event. However White House spokesman Josh Earnest said the cause of the crash was still unknown.

Contributing: Jane Onyanga-Omara