A gang of a round 40-50 masked youths today attacked a police station in the North. The masked youths threw stones and bottles at Rosslea police station in Co Fermanagh.
A PSNI spokesman said no police officer was injured but there was extensive damage to the outside of the building as a result of the trouble which erupted at around 12.45pm.
He added the trouble coincided with a visit to the area by a Sinn Féin youth group.
The attack was condemned by the local police commander, Chief Superintendent Gerry O'Callaghan.
He said: "This incident added nothing to the debate on the future of community policing and the potential closure of community stations."
Ulster Unionist honorary secretary Arlene Foster called on local Sinn Féin representatives to condemn the violence.
"I think it is more than a coincidence that an attack has taken place on Rosslea Police Station at the same time that the Sinn Féin youth group was visiting," she said.
"I call on the Sinn Féin MLAs to condemn this disgraceful attack on the forces of law and order.
"I think we were lucky that no-one was injured but I have to say this sort of incident is in keeping with what is going on in the streets of Belfast. And the time is coming when the British Government is really going to have to stand up to Republican disorder on our streets by tackling Sinn Fein."
Sinn Féin has refused to give its backing to the new Police Service of Northern Ireland which replaced the Royal Ulster Constabulary.
Republicans have insisted that they cannot support the police service because reforms do not go far enough. They have urged young nationalists not to join until there are further reforms and want greater accountability to the policing board, police Ombudsman and Oversight Commissioner.
However, police board members and the British and Irish governments have stated that they believe there is sufficient accountability.
The republican movement has long argued for the disbandment of the Special Branch division and for an independent investigation into alleged collusion between the North’s security forces and loyalist death squads.
Today’s violence came after Sinn Féin president Gerry Adams told an inauguration dinner for the party's first mayor of Belfast Alex Maskey that he wanted to play "a leadership role" in trying to end republican violence.
He said: "I want to reiterate again that Irish Republicans are absolutely and firmly committed to the peace process. "I want to assure unionists that the republican promotion of the equality and justice and human rights agenda is about securing the entitlements of every citizen and of building a strong and open democracy in which we can all promote and articulate our differing goals peacefully and democratically.
"I want to repeat again tonight what I said last July in London that I am totally committed to playing a leadership role in bringing a permanent end to political conflict on our island including the end of physical force republicanism.