The ministry, which says it is closely closely following the investigation into the drive-by killing, has demanded that Pakistan tightens security at both the consulate in Karachi and the embassy in Islamabad, and for Saudi diplomatic staff in the country.

Foreign Minister Prince Saud Al-Faisal has conveyed his condolences to the father and the family of the murdered man.

The Saudi government has sent a plane to bring back diplomat's body to the Kingdom, the Saudi Press Agency said.