Prime Minister Shehbaz is himself overseeing the security of the Chinese projects and engineers.
A Pakistani anti-terrorism court has sent a Chinese national to jail on 14-day judicial remand on blasphemy charges in the restive Khyber Pakhtunkhwa province after he was arrested on Monday, according to media reports on Tuesday.
Nine Chinese engineers were among 13 people killed on Wednesday when a bus carrying construction workers in northwest Pakistan's mountainous region was "attacked", according to officials and eyewitnesses.
The SHO said that Section 7 of the Anti-Terrorism Act had been included in the FIR, adding that the Chinese national would be presented before a court in Abbottabad.
The decision was taken during a meeting between Chinese Foreign Minister Wang Yi and his Pakistan counterpart Shah Mahmood Qureshi in the southwestern the Chinese city of Chengdu on Saturday.