The son of a business partner of China's Cosco group has gone missing in Pakistan.

The incident comes three weeks after a Chinese national in charge of Cosco Shipping Lines in the country was shot dead.

Chen Zu, 45, was killed in his car in Karachi. It was believed to be a targeted attack.

Geo TV reported that the disappearance in mysterious circumstances, also in Karachi, was notified to police two days ago.