BAGHDAD, Iraq—Two rockets landed near the US embassy in Baghdad overnight, security sources told AFP early Tuesday, with foreign diplomats there reporting emergency sirens repeatedly going off.

The latest attack within the walled-off Green Zone, which hosts foreign embassies and Iraqi government buildings, comes amid heightened tensions between Baghdad's 2 main allies, Tehran and Washington.

A foreign security source inside the Green Zone said 2 rockets hit near the embassy and a third fell into the Tigris River, which the US embassy overlooks.

"One hit about 3 meters (10 feet) inside a gate on the embassy compound," the source told AFP.

An Iraqi security source confirmed to AFP that at least a Katyusha rocket landed near the embassy shortly before midnight and was found to have been fired from an area south of Baghdad.

The Iraqi military said 2 projectiles hit the edges of the Green Zone.

Foreign diplomatic sources within the diplomatic area said US embassy sirens wailed across the area twice during the night.