In Pakistan, at least 20 people have been killed and 40 others injured in two suicide blasts in the south-western city of Quetta today. Reports say, the explosions took place in Civil Lines area of Quetta near the Commissioner's office.Police said, one of the attackers rammed a car carrying explosives into another vehicle parked outside the commissioner's office while the other entered the house and started firing. Later, he blew himself up.Sixteen people were killed in both the blasts. Some nearby buildings were damaged in the twin explosions. Rescue teams have reached the spot and the injured have been admitted to local hospitals. No one has so far claimed responsibility for the blasts.