American troops and warplanes repelled an insurgent attack Wednesday in the northern Iraqi city of Mosul, killing at least 25 attackers.

The U.S. military said 15 of its troops were injured and one died in fighting after rebels detonated a car bomb outside a U.S. outpost and opened fire on arriving soldiers. 

Violence in Mosul has intensified following a November offensive against insurgents in Fallujah, as some militants fled to the northern city.

Thursday, the interim government announced the arrest of a Kurdish man accused of facilitating communications between al-Qaida and Abu Musab al-Zarqawi's terrorist network.  A similar arrest was announced Wednesday.

And the insurgent group that claimed responsibility for last week's attack on a U.S. base in Mosul that killed 22 people has renewed its threat to kill anyone who takes part in next month's election.

Some information for this report provided by Reuters and AFP.