Police have arrested a man in the west Midlands for questioning about two loyalist paramilitary killings in Northern Ireland.
PSNI officers were also involved in the operation to arrest the 32-year-old man.
He was questioned about the separate murders of Gavin Brett, 18, shot dead in north Belfast in July 2001 and labourer Gary Moore, 30, gunned down by the UDA at a building site, also north Belfast, the previous December.
Police said the man was being detained at a police station in England.
Mr Brett, a Protestant student, was shot dead by the UDA on the Hightown Road in Glengormley, Co Antrim near his home as he stood chatting to a group of Catholic and Protestant friends close to the entrance to St Enda's GAA club.
His paramedic father tried to resuscitate his son but he died at the scene.
Mr Moore, a Catholic builder, was shot four times in the head and body as he worked on a house in the Monkstown estate in Newtownabbey.
He was from Dungiven in Co Londonderry.
Later, a spokesman for the PSNI said the man had been released unconditionally.