Two Somali-American men living in Minneapolis are facing terrorism charges for allegedly returning home to fight with Islamic militants, documents indicate.

An indictment unsealed Monday in Minnesota charged Salah Osman Ahmed and Abdifatah Yusuf Isse with providing material support to terrorists and conspiracy to "kill, kidnap, maim and injure" in Somalia from September 2007 to December 2008, The St. Paul (Minn.) Pioneer Press reported.

Officials said Ahmed had been a fugitive but was captured recently and appeared before a federal judge Monday, while Isse was arrested in February and has been held since then, his attorney, Paul Engh of Minneapolis, told the newspaper.

The dates of the charges against the two men correspond to a period when about 20 young Somali-American men abruptly disappeared from the Twin Cities. U.S. officials are investigating if they were recruited by radicals of the al-Shabaab movement to take part in the al-Qaida-backed group's efforts to overthrow the interim government in Mogadishu.

Two other Minneapolis men suspected of fighting with al-Shabaab were shot to death this week in battles in the Somali capital, friends and relatives told the (Minneapolis) Star Tribune. They included Zakaria Maruf, 30, and Jamal Sheikh Bana, 20.