BAGHDAD (AP) — A missile struck a helipad inside the U.S. Embassy compound in Baghdad, two Iraqi security officials said.

Associated Press footage showed a column of smoke rising Saturday morning over the embassy compound.

The sprawling embassy complex, one of the largest U.S. diplomatic facilities in the world, has been repeatedly targeted by rockets and drones fired by Iran-aligned militias.

There was no immediate comment from the U.S. Embassy in Baghdad. On Friday, the embassy renewed its Level 4 security alert for Iraq, warning that Iran and Iran-aligned militia groups have previously carried out attacks against U.S. citizens, interests and infrastructure, and “may continue to target them.”