The FBI on Thursday added a U.S. citizen born in Somalia to its list of most-wanted terrorists, saying he might have knowledge of U.S. government buildings, Washington airports and the area's subway system.
The wanted man is Liban Haji Mohamed. Officials said he might be using several aliases.
Mohamed lived in a northern Virginia suburb of Washington and worked as taxi driver, according to an FBI statement.
The FBI said that while he was in the Washington area, Mohamed was a recruiter and radicalizer for the Somali-based terrorist group al-Shabab and provided material support and resources to al-Qaida and al-Shabab.
The FBI said it believed Mohamed left the United States in July 2012 and is now in east Africa working for al-Shabab. The agency is offering a $50,000 reward tor information leading to Mohamed's arrest and conviction.