Claims of responsibility by so-called Islamic State were dismissed at first, but reports that sounds of an explosion may have been captured on a flight recorder have prompted a rethink.
It was thought that intelligence officials at GCHQ intercepted messages between IS members in Sinai and Syria, but News at Ten can now reveal that it was separate intelligence that prompted the British government to ground flights on Wednesday.
ITV News Correspondent Rohit Kachroo reports that aviation attacks may have become the ambition of so-called Islamic State.
Monarch has cancelled all flights to and from Sharm until December 19 as the Government said direct returns would end after November 17.
New mum who was stranded in Sharm el-Sheikh says "words can't describe how happy" she is to be reunited with baby after return from Egypt.
As flights begin to leave Sharm el-Sheikh airport for the UK we take a look at what passengers should do if they are due to fly.