NEW : Journalist Omar Kenyan officials said they helped recruit Kenyans into al - Shabaab . The raid was led by members of SEAL Team Six , the unit that killed Osama bin Laden . The team withdrew because they came under fire , a U.S. official says . Al - Shabaab has claimed responsibility for last year 's Kenya mall attack .
NEW : Kenyan officials said they helped recruit Kenyans into al - Shabaab . The raid was led by members of SEAL Team Six , the unit that killed Osama bin Laden . The team withdrew because they came under fire , a U.S. official says . Al - Shabaab has claimed responsibility for last year 's Kenya mall attack .