A suicide car bomber killed three policemen and a child on Saturday in an attack on a police station in a northwestern Pakistani town, police said.
The blast in the town of Karak, 200 km (125 miles) southwest of Islamabad, came as police were on the alert for potential sectarian attacks on religious processions to mark the anniversary of the Prophet Mohammad's birth.
"The blast destroyed part of police station and a nearby mosque," police official Gul Sadi Khan told Reuters, adding three policemen had been killed. "Thirteen people have been wounded and we fear more people are trapped under the debris."
Another police official said a child passer-by had also been killed.
Karak is in North West Frontier Province, which has borne the brunt of attacks over the past year.
Security forces have also carried out several smaller operations aimed at pushing back fighters and they responded with retaliations such as suicide bomb attcks on police stations.
Paramilitary officials said on Saturday that 25 fighters had been killed in recent days in the latest such operation launched this week in a region about 35 km (20 miles) south of Peshawar.
Fifty-seven people were killed in Karachi in a fighter attack on a Muslim congregation marking the holiday in 2006.
The congregation was organised by the moderate Barelvi Sunni Muslim sect.
Police in Karachi said late on Friday they had arrested three suspected members of the banned Lashkar-e-Jhangvi armed group and seized 20 kg (44 lb) of explosives and detonators from them.
ReutersLast Mod: 27 Şubat 2010, 13:50