Khyber Pakhtunkhwa, Jan. 24 -- A suicide bombing struck a wedding gathering in northwestern Pakistan, killing at least seven people, police confirmed.

The attack occurred on Friday during a wedding ceremony in Dera Ismail Khan district of Khyber Pakhtunkhwa province. A building collapsed after the blast, according to local police official Muhammad Adnan, who said the structure was being used by members of a peace committee at the time of the incident, reported by Al Jazeera.

Initially, three fatalities were reported at the scene. Adnan later said that four additional victims, who had been critically injured, died after being taken to the hospital.

Peace committees in the region are made up of local residents and tribal elders and recei...