Tripoli, June 18 (RHC)-- The United States has captured a suspect accused of masterminding the deadly 2012 attack on the U.S. diplomatic compound in Benghazi, Libya, that killed four Americans, including U.S. Ambassador Christopher Stephens.

Ahmed Abu Khattala was taken prisoner in Libya over the weekend in a raid coordinated by the FBI and the U.S. military. Khattala is the first Benghazi suspect to be detained in U.S. custody. The Obama administration says he will be tried in federal court and imprisoned in the United States, not at Guantánamo.

The Washington Post learned of Khattala’s capture on Monday, but delayed publication at the government’s request.