Barnsley men bitten by South Yorkshire Police dog
Two men have been bitten by a police dog which was being taken for a walk in Barnsley by his off-duty handler.
One of the men, 44, suffered a "serious hand injury" - the second, aged 19, received a minor injury to the leg, according to police.
An internal investigation has begun following the incident which happened on Lund Avenue on Saturday shortly after 17:00 BST.
The force's professional standards department is investigating.