7 injured in blast in southwest Pakistan

At least seven persons were injured today when a powerful explosion rocked Quetta, the capital of Pakistan's southwestern Balochistan province, police said.
A police official said that the explosive was fitted with vehicle loaded with fruits.
"The vehicle was parked on the roadside at the time of bombing," he said.
A senior police official was apparent target of the blast as the explosion occurred when his vehicle was near the site of bombing, the reports said.
The official remained unhurt.
Nobody took responsibility of the blast but Baloch nationalist are active in the province and often target the security forces.