A bomb attack on a Shi'ite mosque in Baghdad has killed at least nine people and wounded 20 others. Police say a car bomb blew up outside the al-Subeih mosque as Friday prayers were coming to a close. No one has claimed responsibility. Meanwhile, al-Jazeera Arabic television has shown video of what it says are three kidnapped Romanian journalists. The pictures were silent, but the al-Jazeera commentator said the captors are demanding Romania pull its 800 troops out of Iraq within four days or the hostages will be killed. Separate video showed the reporters' Iraqi-American translator. Romanian President Traian Basescu returned early from a summit in Moldova to deal with the situation.