Deputy First Minister Martin McGuinness has condemned the murders in Belfast and Londonderry.
The veteran Sinn Fein politician said both murders were carried out my criminal gangs - and not republicans.
“Over the past 24 hours two men have been murdered in Belfast and Derry,” he said.
“I condemn these murders without equivocation. Those responsible claim to be dissident republicans. They are not republicans of any shade. They are entirely motivated by criminal intent.
“Many of these gangs are involved in the drug trade themselves. They are routinely extorting money from drug dealers and other criminals.
“They are heavily involved in all sorts of organised crime. Yet they carry out murders like the ones we have witnessed in Belfast and Derry under the bogus notion that they are standing up for the community.”
Mr McGuinness said the “community have already made their stand”.
“They have stood against gangsterism and criminality and stood for peace and building a new future,” he added. “The community now need to work with the PSNI to bring forward information to allow them to tackle criminality and the criminal gangs who seek to profit on the backs of ordinary decent people.”