Two US citizens came under gunfire Friday in Saudi Arabia, and one of them was wounded but "in stable condition," police said.

Two US citizens came under gunfire Friday in Saudi Arabia, and one of them was wounded but "in stable condition," police said.

It was not immediately known who shot at them.

The two were travelling on a road in Eastern Province's Shiite-populated Al-Ihsaa governorate at the time, said a police spokesman in a statement published by the official SPA news agency.