Some news about the downed plane: it may not necessarily have been terrorism, but perhaps an electrical fire.

EgyptAir: ‘Smoke detected’ inside cabin before crash

There were smoke alerts inside the cabin of the EgyptAir passenger plane before it crashed in the Mediterranean on Thursday, reports say.

Smoke was detected in the toilet and the aircraft’s electrics, just minutes before the signal was lost, according to data published on air industry website the Aviation Herald.
However, there has been no official confirmation of the data.

bbc.co.uk