A rocket attack on the sprawling US embassy in Baghdad caused minor damage but no casualties Friday morning, US and Iraqi officials said.

The attack is the first on the embassy located in the heavily fortified Green Zone of Iraq’s capital to be confirmed since the beginning of the Israel-Hamas war. The Green Zone houses Iraqi government buildings and embassies on the west bank of the Tigris river.

Iran-backed militias in Iraq have claimed responsibility for dozens of attacks that targeted bases housing US troops in Iraq and Syria since Israel declared war on Hamas two months ago.

The US military says 78 attacks have been carried out against US facilities over the past weeks, of which 37 were in Iraq and 41 in Syria.

An Iraqi security official said 14 Katyusha rockets were fired on Friday, of which some struck near one of the US Embassy’s gates while others fell in the river. The official said the rocket attack caused material damage but no casualties.

A US military official said a multi-rocket attack was launched at American and coalition forces in the vicinity of the embassy complex and the Union III base, which houses offices of the US-led coalition.