Eleven detainees escaped early Saturday from Iraq's Camp Bucca prison, but 10 were believed to have been caught hours later, the U.S. military and Iraqi police said. One of the detained prisoners told The Associated Press the group escaped through a hole in the fence surrounding the U.S. detention center, the largest in Iraq with 6,000 prisoners. "We decided to flee the prison because of the bad treatment and delay in investigations," 24-year-old Hussein Nima said. The prisons have come under criticism for holding prisoners indefinitely. Lt. Col. Guy Rudisill, a military spokesman, said that officials confirmed that 11 prisoners were missing after discovering the hole. Officials immediately began a search, and 10 people believed to be among the missing prisoners were detained by Iraqi police a few hours later, Rudisill said. Rudisill declined to release information on why the 11 were being held.