A US Marine attack helicopter crashed near Ramadi, Iraq, on Wednesday, killing two crew members, after insurgents fought with American ground forces in the city, destroying at least one of their Humvees, police said. The US military in Baghdad said it had no immediate information of ground fighting in Ramadi on Tuesday night or Wednesday morning. But the US command said the AH-1W Super Cobra went down about 8:10 a.m. near Ramadi, 115 kilometers (70 miles) west of Baghdad, killing the two crew members. The military said the cause of the crash was being investigated. APTN quoted another Iraqi man who said he saw the crash and that insurgents "fired at the helicopter and shot it down."