ISLAMABAD, Aug. 11 (Xinhua) -- A suicide attack injured six people, including three Chinese workers, in Pakistan's southwestern Balochistan province on Saturday, the Chinese Embassy to Pakistan said.

"The Embassy and Consulates General of China in Pakistan strongly condemn the violent attack in Balochistan today, and express our sincere sympathy to the injured from both countries," the Chinese Embassy and the Chinese Consulate General in Karachi said in a statement.

The Chinese side has requested Pakistan to investigate the incident, bring the perpetrators to justice and take further effective measures to ensure the security of the Chinese institutions and citizens in Pakistan, the statement added.

The suicide blast shattered the windows of the bus ferrying the Chinese workers in Dalbandin, about 340 km southwest of the provincial capital of Quetta.