A 28-year-old man was in a stable condition in hospital last night after being shot in the head and back.
He was walking in the Ligoniel area of north Belfast shortly before 8.40pm when he was shot twice.
It was not known whether or not the attack was sectarian.
A PSNI spokeswoman said last night they were trying to establish a motive.
The man was rushed to the Royal Victoria Hospital for emergency treatment. An RVH spokeswoman confirmed he was in a stable condition.
It is understood the man was approached by the occupants of a dark coloured car and shot.
A PSNI spokeswoman has said the police investigation was ongoing and appealed for anyone who may have seen the shooting to contact detectives.
Belfast Lord Mayor Jim Rodgers described the incident as a "concerning and worrying development".
He said: "As Lord Mayor of Belfast I want to see our city free from any attacks.
"I condemn unreservedly the attack.
"Most of us thought that the gun had been taken out of our society."