Two Koreans and an Egyptian driver have been killed by a blast on a tourist bus in the Sinai peninsula near Egypt’s border with Israel. The explosion wounded 14 other Korean tourists. <br /><br />The cause of the blast was not immediately clear.<br /><br />Islamist militants based in the largely lawless Sinai have stepped up attacks on security<br />forces since president Mohamed Mursi’s downfall in July, killing hundreds.
