Three Teen Girls Detained by FBI in Germany for Attempting To Join ISIS

Officials: 3 Denver girls played hooky from school and tried to join ISIS (CNN)

The first indication that something was wrong was a phone call from his daughter's Denver area school to let Assad Ibrahim know that she had not come to class.

He dialed her cell. And she answered. But, officials say, she didn't tell him that she was on her way to Syria to join ISIS.

She was just late for class, that's all, Ibrahim's daughter told him on Friday, according to the Arapahoe County Sheriff's Office, which filed a runaway report .

The American girl of Sudanese descent also kept quiet about her two girlfriends, Americans of Somali descent, who were flying with her to Turkey by way of Germany.