Pacemaker
Officers went to a house in Marian Park at about 12:00 BST
A murder inquiry has been launched after the death of a man in Downpatrick.
Police received a report that a man was found dead at house in Marian Park at about 12:00 BST on Sunday.
A 30-year-old man has been arrested on suspicion of murder and remains in custody.
Police suspect the case might be connected to a serious assault on a priest in St Patrick's Church in the County Down town.
Supt Norman Haslett said: "Enquiries are at an early stage and, at this time, we suspect this may be connected to a serious assault in the St Patrick's Avenue area of Downpatrick on Sunday."
Previously, police said a man walked into the church on St Patrick's Avenue at about 10:10 and hit the priest, Fr John Murray, on the head with a bottle.
Det Ch Insp McBurney said it "was a completely shocking and brutal attack and has left the priest with a serious head injury".
The priest was taken to the Royal Victoria Hospital in Belfast, where police said he remained in a "serious condition".