A suicide bomber blew himself up as soldiers tried to arrest him, a military spokesman in Swat said on Monday, and seven Taliban militants were killed separately in a gunfight. The suicide bomber blew himself up overnight in the town of Mingora, in the Swat valley, after being "encircled" by the soldiers, the military spokesman in the area said. Four soldiers were lightly wounded in the explosion. Separately, seven Taliban militants were killed in Kabal village, also in the Swat valley, during an exchange of fire with troops late Sunday, the spokesman added. Another senior military official confirmed the suicide attack and gunfight casualties.