QUETTA, Pakistan (AP) — Police in Pakistan say a suicide bomber has struck a vehicle carrying security forces in the southwestern city of Quetta, wounding five soldiers.

Senior police official Aslam Tareen says Monday's attack took place in a residential area. He said the wounded troops have been transported to a hospital where some were listed in critical condition.

No one immediately claimed responsibility, but past attacks on security forces have been blamed on Islamic militants and Baluch separatists.