A Chinese delegation called on Foreign Secretary Sohail Mahmood, 24NewsHD TV channel reported on Friday.

According to the Foreign Office Spokesperson, the foreign secretary strongly condemned the April 26 terrorist attack that claimed lives of Chinese nationals in Karachi

The law enforcers have launched a hunt for bringing to book the culprits, the foreign secretary said, reiterating commitment to strengthen long-standing and multilateral relations with China.

Last month, three Chinese nationals and a Pakistani driver in a terror attack on a university campus in Karachi.  Banned outfit Baloch Liberation Army claimed responsibility for the first suicide attack by a woman assailant.

Chinese have regularly been attacked by militants from Balochistan, where Beijing is involved in huge infrastructure projects as part of its Belt and Road Initiative.

China is upgrading energy links and infrastructure as part of the China-Pakistan Economic Corridor, with both nations wary of security threats to the projects.

In April 2021, a suicide bomb attack at a luxury hotel hosting the Chinese ambassador in Quetta, the provincial capital of Balochistan, killed four and wounded dozens. The ambassador was unhurt.

In July last year, a bus carrying engineers to a construction site near a dam in northwestern Pakistan was hit by a bomb, killing 13 people including nine Chinese workers.