US extremist in Somalia fears for life from fellow fighters - Watch Video

Omar Hamami -- better known as Abu Mansoor al-Amriki -- gave the warning in an undated video posted on several Somali websites and YouTube Saturday.

"To whomever it may reach from the Muslims, from Abu Mansoor al-Amriki, I record this message today because I feel that my life may be endangered by Harakat Shebab Al-Mujahedeen due to some differences that occurred between us regarding matters of the Sharia (Islamic law) and matters of the strategy," he said, speaking in English.

The bearded Amriki, dressed in a black top and with a checked scarf, posed in front of the Shebab