Police in Northern Ireland have renewed their appeal for information on the murder of a teenager in an unprovoked attack in Belfast six months ago.

15-year-old Thomas Devlin was fatally stabbed as he and two friends walked home from a shop in the Somerton Road area of north Belfast, where they had gone to buy sweets.

Police immediately focused their investigation on two men who were seen in the area with a dog at the time of the murder, and these men remain the prime suspects in their investigation.

The officer in charge of the inquiry remains convinced that key witnesses who were in the area at the time have still not come forward.

He has also appealed to the families and friends of the two main suspects to come forward, in a bid to bring about justice.

Eight men have been arrested since August and in excess of 20 searches have been carried out but police still lack the crucial evidence needed to bring charges.