Baghdad: At least four people were killed and 13 wounded in northern Iraq when two suicide bombers blew themselves up.
The bombers struck in the afternoon in Tal Afar, 420 km northwest of Baghdad.
The incident happened at the entrance to a Shi'ite mosque during Friday prayers, police said.
Attacks in Iraq are down 60 percent since June, but the security in the country's north remains a headache after the Al Qaida regrouped there after being ousted from strongholds in western Anbar province and from around Baghdad last year.
