A suicide bomber riding on a bicycle targeted a vehicle carrying security forces in southwestern Pakistan on Saturday, killing at least eight people, mostly civilians, and wounding more than 20. Senior police officer Imtiaz Shah said the attacker blew himself up near a vehicle belonging to the paramilitary Frontier Corps in Quetta, the capital of Baluchistan province. Government spokesman Anwar Kakar said the attack killed six civilians and two members of the security forces, AP reported.