Islamabad: At least 14 people were killed and over a dozen injured in an explosion near a polio centre in Quetta's Satellite Town on Wednesday
The victims, most of whom are security officials, have been rushed to Civil Hospital Quetta, where an emergency has been imposed.
Eyewitness said that they also heard firing after a loud blast rocked the area.
Deputy Inspector General (DIG) Police Quetta Syed Imtiaz Shah said seven to eight kilogramme of explosives were used in the blast. He said most of the victims were policemen who laid down their lives to guard polio workers.
"The blast was apparently carried out by a suicide bomber," said Balochistan Home Minister Mir Sarfaraz Bugti told reporters
The nature of the blast is unknown as yet.
Police and rescue workers reached the site soon after the blast.