Members of a disbanded Islamic extremist militia are denying claims that the commander of the group has been shot. The group is suspected of involvement in an attack in Benghazi that killed the U.S. ambassador and three other Americans last September.

Former militiamen of Ansar al-Shariah, dissolved after protests against them last year, told The Associated Press Monday that Sufyan bin Qumu, a former Guantanamo Bay detainee, had not been attacked by unknown assailants, as a security official claimed.

They say another member was shot That's in line with reports by local media in Derna, where the attack took place late Sunday.

The former militiamen, who spoke anonymously due to the sensitivity of the subject, denied the group had any involvement in the Benghazi attack that killed Ambassador Chris Stevens.