ARISH, Egypt, Dhu-AlHijjah 30, 1435, Oct 24, 2014, SPA -- A coordinated assault on an army checkpoint in the Sinai Peninsula killed 30 Egyptian troops while scores wounded on Friday, making it the deadliest single attack in decades on the Egyptian military. Officials described it as "well-planned" attack that began with a car bomb which may have been set off by a suicide attacker. Other militants then fired rocket-propelled grenades, striking a tank carrying ammunition and igniting a secondary explosion. Roadside bombs intended to target rescuers struck two army vehicles, seriously wounding a senior officer. State-run TV said there was an explosion followed by clashes between troops and militants, without providing further details. The attack took place some 15 kilometers from the northern Sinai city of el-Arish, in an area called Karm el-Qawadees. There was no immediate claim of responsibility.