A suicide bomber has killed at least 88 people and injured dozens more in northwest Pakistan.

The attack on Friday at a volleyball tournament in the city of Lakki Marwat was one of the deadliest Pakistan has seen in recent months.

There has been no claim of responsibility, but officials say the attack could be in retaliation to local tribal efforts to combat the Taliban.

Al Jazeera's Alan Fisher reports.

Source: Al Jazeera