A graphic video's been posted on social media showing an elderly woman's skull being fractured.
Newry and Mourne PSNI did it to highlight the dangers of stoning passing vehicles.
They say it happens on a regular basis in Newry.
In the post, an officer wrote "It doesn't have to be a brick to cause serious damage or injury,
"A stone and the fact the vehicle is moving adds to the dangers."
Hilary Benn defends £50 million NI defence deal after Michelle O’Neill criticism
By Claudia Savage (Press Association)
NI ‘probably’ worst in western Europe for cancer wait times – committee chairman
By Jonathan McCambridge (Press Association)
Police restraint did not lead to death of man, coroner finds
By Jonathan McCambridge (Press Association)
Man who stole Noah Donohoe rucksack says he ‘never met or saw’ schoolboy
By Gráinne Ní Aodha, (Press Association)
Man dies following fire at Belfast hospital
By Jonathan McCambridge (Press Association)
Download the Q Radio app to keep listening, wherever you are! It's available on Apple and Android devices.
Download from the App Store Download from Google Play
