A suicide bombing inside a Shi'ite mosque in the northern Iraqi town of Tuz Khurmatu has killed dozens of people.

Local officials said the attack on January 23 targeted the funeral of a man who was killed a day earlier.

It is still unclear how many were killed when a suicide bomber entered the mosque and blew himself up among the crowd.

Officials and tribal leaders were reportedly among those wounded in the attack.

No group has so far claimed responsibility for the suicide bombing.

Based on reporting by AFP and Reuters