Several US troops were wounded during a major skirmish west of the Iraqi city of Fallujah when resistance fighters attacked a military convoy. Witnesses quoted by AFP said on Thursday that the convoy had stopped when one of its vehicles broke down in the town of Khaldiyah, 30km west of Fallujah. Gunfire and mortar fire were exchanged for more than an hour, after masked men attacked with rockets. The same witnesses reported seeing American soldiers severely wounded but there was no official confirmation. **Aljazeera team released*** Meanwhile, occupation forces may investigate the detention of two reporters from Aljazeera, according to US Commander Ricardo Sanchez on Thursday - who insisted their arrests were justified. Asked by an Aljazeera correspondent whether the arrests - the eighth involving the television's journalists here since the war - amounted to "harassment", Sanchez said: "There is an investigation ongoing." One reporter, Atwar Bahjat, was released after spending the night in a US military holding camp at Baghdad airport. The television said she had been detained while covering a bomb attack in the al-Ghazzaliyah district of the capital. **PHOTO CAPTION*** U.S. soldiers arrest an Iraqi men about two hours after a roadside bomb injured a soldier in a Humvee in Mosul, 400 km north of Baghdad, Iraq, Saturday, September 6, 2003. (AP Photo/Misha Japaridze)