Photos show extensive damage to the U.S. Embassy in Baghdad after it was attacked by supporters of an Iran-backed militia on Tuesday.

Among other things, the pictures depict a charred reception room, burnt checkpoint and fire-damaged entrance.

A spokesperson with the U.S. State Department told Military Times Tuesday that protesters never breached the embassy. But demonstrators were able to access a reception area and entered the larger compound that surrounds the embassy.

Supporters of the Iran-backed militia Kata’ib Hizbollah attempted to storm the U.S. Embassy in Baghdad on Tuesday following U.S. airstrikes on Dec. 29 that targeted five facilities belonging to the group. The U.S. has blamed the Iran-supported group for a series of rocket attacks aimed at coalition bases in Iraq.

Violent demonstrations at the embassy prompted U.S. officials to beef up security with additional Marines and other assets.

Pro-Iranian militiamen and their supporters are seen through broken windows of a burned checkpoint in front of the U.S. embassy in Baghdad, Iraq, Wednesday, Jan. 1, 2020. U.S. troops have fired tear gas to disperse hundreds of pro-Iran militiamen and other protesters who were gathered for a second day outside the American Embassy compound in Baghdad. (Khalid Mohammed/AP Photo)

The Associated Press reported that U.S. troops had to fire tear gas to disperse the angry protesters.

About 100 Marines with the Special Purpose Marine Air-Ground Task Force, Crisis Response–Central Command were dispatched to the embassy Tuesday and arrived within a few hours.