A Minnesota man has pleaded guilty to terror charges for helping Somalis join a jihadi group.

Omer Abdi Mohamed, 26, pleaded guilty Monday to providing material support to terrorists and helping Somali Americans travel from Minneapolis to Somalia to take up arms with al-Shabab, an al-Qaeda-linked Islamist group.

Dozens of Somalis are believed to have gone back to their homeland to join al-Shabab.

Mohamed said he attended meetings at mosques and other locations where radicals raised money and made arrangements to send fighters to Somalia.

Prosecutors say that once in Somalia, the travelers joined al-Shabab insurgents, helping them to build a terror training camp where they received weapons training from al-Qaeda operatives.

Five other men have already pleaded guilty in the government's ongoing investigation, called "Operation Rhino" by federal agents.

Mohamed faces up to 15 years in prison.