MINNEAPOLIS — Adnan Abdihamid Farah’s parents took his passport away last year when it came in the mail, and his mother would later tell authorities she feared her son would “disappear.”

She also stopped the 19-year-old from traveling with his brother, Mohamed Abdihamid Farah, when the siblings told her they were going to Chicago. Mohamed — who was older and given more freedom — made the trip and instead ended up in San Diego, where authorities say he was bound for Mexico and ultimately the Islamic State group in Syria.

“I cry all day,” their mother, Ayan Farah, said Wednesday. “I don’t know what happened.”

The brothers are among six Minnesota men of Somali descent charged this week with terrorism-related offenses, accused of attempting to travel to Syria to join the Islamic State group.