A fourth man has been arrested as part of an investigation into the murder of a man in Co Derry at the weekend.
Trevor Spiers, 28, was injured in a fight outside a nightclub in the seaside town of Portstewart in the early hours of Sunday morning.
He died from his injuries in hospital some time later.
Police investigating his murder today arrested a 23-year-old man in the Coleraine area.
Three other men, aged 19, 20 and 21, remain in custody.
