Police have been attacked with petrol bombs during a dissident march in Northern Ireland.

The force urged for calm after a number of missiles were hurled by young people at a PSNI Land Rover which was monitoring "an un-notified Easter parade" in the Creggan area of Derry.

The march, organised by the Derry 1916 Commemoration Committee, started in the Central Drive area and was led by a number of people in paramilitary-style dress.

As the parade progressed towards the City Cemetery, masked youths began attacking the police vehicle before it drove off in flames.

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A PSNI spokesperson said: “Our officers have come under attack in Creggan with petrol bombs and other objects thrown at their vehicle while in attendance at an un-notified Easter parade.

“No injuries have been reported at this time.

“We would appeal for calm.”

Sinn Fein vice president Michelle O’Neill described the violent scenes as “deplorable”.

She added: “Twenty-five years on from the Good Friday Agreement this needless street disorder in Derry has no place in our society.

“As political leaders we must stand united, appealing to all those concerned to end these attacks and refrain from further threats of violence, whether in Derry or North Down.

“This type of illegal and anti-community activity is deplorable and out of step from wider community and public opinion.

“Our focus is on the future and on the future of our young.

“This society is moving forward and peace and stability will prevail.”

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Last week senior police warned of the potential of disorder at the event.

Assistant Chief Constable Bobby Singleton said the force has received “strong” intelligence that dissidents were planning to launch terror attacks against officers on the bank holiday.

Police had increased security measures in response to the un-notified parade.