Police are investigating reports of two separate shooting incidents in Belfast and Newry on Sunday night.
It was reported that shots were fired through the kitchen window of a house in Eliza Street Terrace just after 9pm.
No-one was injured.
Meanwhile later in Newry police said there were reports that shots were fired at a house in Carnbane Gardens.
The house was empty at the time.
Ulster Unionist MLA Danny Kennedy and the deputy Mayor of Newry & Mourne, Councillor David Taylor, condemned the gun attack.
“I visited the scene this morning and spoke to residents,” said Mr Kennedy.
I would appeal for anyone who knows anything about this incident to come forward immediately. We simply cannot have people going around Newry shooting at houses, and it is important that this is incident is dealt with as quickly as possible in order to re-assure the local community.”
Councillor Taylor said the attack was “reckelss”.
“Discharging a firearm in a built up area risks injuring or even killing innocent people and there is absolutely no excuse or defence for such activity. Whoever was responsible must be caught and punished in the courts. Community safety is paramount.”
Anyone who has any information about either incident is asked to contact police on 0845 600 8000 or Crimestoppers on 0800 555 111.