The first shooting at Sandys Street in Newry, Co Down happened around midnight.
Police say a man called to the door of a house and following an altercation, the 32-year-old occupant was shot in the leg.
Around two hours later a second shooting incident happened on the Armagh Road in Newry, Co Down.
The victim, who is also 32, had been at a house on the Ardfield Road area of Warrenpoint earlier in the evening.
Four masked men called to the address and police said he was abducted and put into a car and driven to the Armagh Road.
He was taken out of the vehicle around 1. 50 am and then shot in the leg.
The man has been taken to Newry’s Daisy Hill Hospital for treatment to injuries that are not thought to be life threatening.
Part of the Armagh Road has been closed to traffic, with diversions in place at the Goragh Road and Jockeys Brae.
Superintendent Simon Walls said, “Our investigation into these incidents is at a very early stage and we are working to identify a motive for the shootings and if they are linked.
“I would appeal for the public’s assistance to help us identify and to take those responsible for these attacks off the streets.”
Detectives at Ardmore PSNI station have appealed for anyone with information about the attack to contact them on the 101 non emergency number.
Or alternatively information can be passed anonymously to Crimestoppers on freephone 0800 555 111.