Egyptian airport security under scrutiny as bomb suspicions mount
Egypt insisted its airports were secured to international standards, despite growing concerns that its screening procedures may be flawed and that Islamist militants may have downed a Russian plane by smuggling a bomb on board.
Earlier Britain said a bomb planted by an Islamic State affiliate active in the Sinai Peninsula may have caused the jet to crash on Saturday, killing all 224 people on board.
It halted flights to Sharm al-Sheikh - from where the doomed plane flew - pending security checks, a move quickly followed by Ireland, Germany and the Netherlands.
Egyptian and Russian officials have said it is too early to conclude a blast had brought down the plane.