[QT3.14]

Fox reporting a merchant ship reported seeing flames in the sky.

[rdl6989]

Fox reporting a merchant ship reported seeing flames in the sky.

Bomb.

[Yaelle]

Greek authorities checking out many sightings of fireball in sky from an island of Greece.

[tcrlaf]

UK Guardian:

Updated information from EgyptAir says:

EgyptAir A320 aircraft flight number MS804 lost contact with radar above the Mediterranean sea about 280km (175 miles) from the Egyptian seacoast at 2.30am [local time] as the flight was expected to arrive Cairo airport at 3.15am.

This is quite different to earlier reports from the airline that the last-known contact was around 50km north of the Egyptian coastline.