NAIROBI, Kenya — Militants in Somalia are publicly rebuking their best known American fighter.

Al-Shabab posted a statement Monday scolding Omar Shafik Hammami, formerly of Daphne, Ala.

Hammami, who is also known as Abu Mansur al-Amriki, said publicly earlier this year that he fears members of al-Shabab may kill him over differences of opinion.

The new al-Shabab statement says Hammami's video releases are the result of personal grievances that stem from a "narcissistic pursuit of fame." The statement said al-Shabab has been speaking to Hammami in private but that those efforts have been "fruitless." The statement said al-Shabab was morally obligated to out his "obstinacy."

The statement was posted on a Twitter feed used by a member of al-Shabab.

The FBI placed Hammami on its most wanted terrorist list last month.