Coalition forces have arrested two alleged leaders of al Qaeda in Iraq, the US military has said.
The two men were identified as Taha Ibrahim Yasin Becher, also known as Abu Fatima, and Hamed Saeed Ismael Mustafa, also known as Abu Shahed.
The men were apparently holding a meeting at the time of their capture.
They are said to have headed the Mosul branch of the terror group, which is led by Abu Musab al Zarqawi.
The group has claimed responsibility for dozens of suicide bombings which have left thousands of people dead.
They have also kidnapped and murdered several Western contractors, including Briton Ken Bigley.
A US statement said Abu Fatima took over as the group's top-ranking operative in Mosul 12 days ago, after his predecessor was captured by Coalition forces.
On Thursday, Major General Rick Lynch said security forces had killed 226 militants and captured 757 in recent operations in Mosul and the surrounding area."