UK says explosive may have downed Russian plane over Egypt
As a precautionary measure, flights heading to Britain from Sharm al-Sheikh are being delayed.
Egypt's Prime Minister Sherif Ismail (4rth R) at the remines of a plane crash at the desert in central Sinai near El Arish city north of Egypt, October 31, 2015(photo credit: (AICF/CHRIS LEE))ByREUTERSUpdated: