“CCTV of the gunmen seized from both murder scenes clearly shows they are the same two men. I have released these images today and would appeal to anyone who has information about their identity to come forward.”

Detective Superintendent Corrigan also released new information about the murder of Sean Fox: “We now know the two gunmen travelled to and from Donegal Celtic Sports and Social Club on bicycles through the areas of Glen Road, Dungloe Crescent, Glenveigh, Gweedore Gardens and Carigart Avenue between 1420 and 1430 hours on October 2nd.

“I am appealing for information about where these bicycles originated from and where they are now.

“One gunman is riding a light grey or silver generic, low spec model mountain bike. There is a plastic bag over the seat. He was wearing a light grey hoodie with distinctive three orange lines down the arms, dark grey bottoms, dark footwear and gloves and has a cap on under his hoodie.  He is carrying a dark black holdall, which I believe contained the guns.

“The second gunman was riding a racer bike with a distinctive rear point to the saddle which appears to be a Fizik Arione, or a copy of this model. It had a white handlebar, white handlebar stem, pink handlebar tape and white tyres. He was wearing a blue hoodie, dark-coloured bottoms and footwear and light grey gloves.”

Detectives have conducted a number of searches and arrests this week in West Belfast in relation to both murders.