BAGHDAD, Iraq - The U.S. military reported Wednesday that nine American troops had been killed in bombings and combat, raising to 67 the number of U.S. troops killed in October.

The eight U.S. soldiers and one Marine were killed by roadside bombs and enemy fire in and around Baghdad on Tuesday, the military reported.

Four soldiers died when a roadside bomb struck their vehicle at about 6:50 a.m. Tuesday morning west of Baghdad, the military said in a brief statement.

Three soldiers attached to Task Force Lightning, assigned to the 3rd Heavy Brigade Combat Team, 4th Infantry Division, were killed and one wounded during combat in Diyala province east of Baghdad. Another soldier died around 9:30 a.m. when suspected insurgents attacked his patrol in northern Baghdad.

A Marine assigned to Regimental Combat Team 7 also died from injuries sustained during fighting in Al Anbar Province, it said.