Two juveniles are being questioned after the death of a security guard at a shopping centre on the outskirts of north Belfast.
The guard died at the Abbey Centre at Newtownabbey, Co Antrim at around 2pm.
It is understood two youths went into a Toymaster shop in the mall and tried to steal bags of sweets and were grabbed by staff and handed over to the security guard.
Moments later he collapsed near a nearby stairwell.
The PSNI said it was investigating the death about an hour after the popular shopping mall opened for Sunday trading.
A spokeswoman said the juveniles had been taken to a local police station where they were helping with inquiries.