BAGHDAD, Iraq (CNN) -- Thirty Marines and a Navy corpsman were killed in a helicopter crash near Iraq's border with Jordan, bringing the number of U.S. troops killed Wednesday to 37 -- the deadliest day for U.S. forces since the start of the war in Iraq.
Four U.S. Marines were killed during combat in Iraq's Al-Anbar province, and two U.S. soldiers were killed in attacks in the Baghdad area, according to the U.S. military.
