Published Friday, 16 November 2012
Police are questioning three people about the attack. (© UTV)
The incident happened in the Causeway Street area at around 12.30am on Friday.
The victim was taken to hospital for treatment.
His condition is being described as not life threatening, a police spokesman said.
Two men, 18 and 24, and a woman, 19, have been arrested.
They are assisting police with their enquiries.
Police are appealing for anyone with information to come forward.