Deputy First Minister Peter Robinson has accused Peter Robinson of "dancing to the tune of loyalist extremists" in a newspaper interview ahead of this weekend's Sinn Fein Ard Fheis.
The Sinn Fein man told the Irish News: "I've reached out the hand of friendship to everybody.
"I've bent over backwards and done everything in my power to try and bring the situation forward towards normal politics - but there's nothing normal about this place."
He accused Peter Robinson of listening to "loyalist extremists" over the long-running dispute over the redevelopment of the old Maze prison site.
"It came as a bolt from the blue - not even a phone call," he told the newspaper.
Responding today, DUP MP Nigel Dodds said the comments about the party and Peter Robinson were "the latest attempt by Sinn Fein to throw insults as a crude distraction from the leadership jockeying within the party’s own ranks".
"Sinn Fein’s problem is not that they can’t reach agreements with unionists but they can’t take a decision within their own party," he said.