A 35-year-old man - who was arrested in connection with shots were fired on the day of a funeral for a former INLA prisoner Michael McElkerney - has been released unconditionally.
Photographs have emerged of a masked gunman firing a rifle into the air outside Mr McElkerney's home in the Divis area of west Belfast.
57-year-old McElkerney died in hospital after being found critically injured at Milltown cemetery earlier this month.
He was was convicted over the murders of two children and a soldier in a bomb attack in the Divis area in 1982.
Detectives arrested the suspect under the Terrorism Act on Friday 24 May before he was released unconditionally on Saturday 25 May.
"The male was arrested in the Newtownabbey area last night on suspicion of membership of a proscribed organisation and is being questioned in the serious crime suite at Musgrave police station," a PSNI spokesman said.
"The investigation into this incident is ongoing and police continue to appeal to anyone with information to contact police."