Bulgarian President Georgi Parvanov's convoy came under attack by gunmen late last night during a surprise visit to the Balkan state's forces stationed in Iraq.
The convoy was shot at as it travelled between the camps of Bulgarian and Polish troops in Kerbala, where Shia militants have stepped up attacks against US-led forces in recent weeks, a spokeswoman said.
No one was hurt in the attack, and Mr Parvanov returned to Bulgaria early this morning, she said.
