The Democratic Unionists have warned that the "glorification of terrorism" by Sinn Féin was making it more difficult to restore power-sharing government in Northern Ireland.
Following talks in Downing Street with Theresa May, DUP leader Arlene Foster said they remained committed to the return of devolved government at Stormont.
However, she said that any agreement had to work for both unionists and nationalists, and that the activities of Sinn Féin were not helping.
Speaking after meeting Theresa May, DUP leader Arlene Foster says recent comments by Sinn Féin amounted to the "glorification of terrorism" pic.twitter.com/lOmq1mH67Z— RTÉ News (@rtenews) November 21, 2017
"We did say to the Prime Minister that the glorification of terrorism at the weekend at the Sinn Féin conference was making it more difficult to bring around devolution," she said.
"We are talking about a deal unionism and nationalism can live with.
"They are talking about nationalism and that's it."
At the Sinn Féin Ard Fhéis in Dublin at the weekend tributes were paid to the late Martin McGuinness.
One of the loudest cheers of the conference came when delegates were told that the former Stormont deputy first minister had been a "proud member of the IRA".