Two armed men riding a motorcycle fired at the vehicle as it neared an Afghan refugee settlement in Karachi this afternoon.
The Ghanaian national, a doctor, was visiting a camp in Sohrab Goth area where children were being administered polio vaccine.
The Ghanaian national was hit by two bullets while the driver of the vehicle was injured in the arm. Officials told the media they were out of danger.
No group claimed responsibility for the attack. The gunmen escaped before police reached the spot.