suicide bomber struck near the U.S. Embassy in Afghanistan’s capital on Tuesday, killing five people in an attack claimed by the Islamic State group.

Health Ministry spokesman Wahid Mujro said another 20 people were wounded in the blast, which took place in a heavily-guarded area housing several diplomatic missions and the offices of international organizations.

IS claimed the bombing in a brief statement carried by its Aamaq news agency, without specifying the target.

“There were a number of dead bodies and wounded victims lying around,” said Ghulam Hazrat, who witnessed the attack. He said military and civilian ambulances arrived quickly.