Video footage showed one of the rioters ablaze after getting caught up in the flames.
On Sunday night rioters had gathered again in the area and petrol bombs were thrown at police.
Last night, as the DUP and Sinn Fein blamed each other for stoking tension, the body representing PSNI officers said the police cannot be used as a political football.
Mark Lindsay, who chairs the Police Federation of Northern Ireland, urged politicians to consider the human cost of their inflammatory language, and warned that officers were paying the price for a lack of leadership across society.
Mrs Long pleaded with people to stop before lives are lost.
Children as young as 12 involved in another night of violence as five police officers injured The PSNI at Northland in Carrickfergus following sporadic outbursts of disorder. Picture by Liam McBurney/PA Wire James Ward and Rebecca Black, PA 05 April, 2021 09:31
Children as young as 12 were involved as violence flared during another night of disorder in parts of Northern Ireland, police said.
Officers came under attack and were pelted with petrol bombs in a night of violence in predominantly unionist estates in Derry last night.
The PSNI condemned “another night of senseless and reckless criminal behaviour” that began in the Waterside area of Derry at around 9pm.
Children as young as 12 were involved as violence flared during another night of disorder in parts of Northern Ireland, police said.
Officers came under attack and were pelted with petrol bombs in a night of violence in predominantly unionist estates in Londonderry on Sunday night.
The PSNI condemned “another night of senseless and reckless criminal behaviour” that began in the Waterside area of Derry at around 9pm.
Chief Superintendent Darrin Jones said: “Again we saw our officers targeted, pelted with petrol bombs and masonry in the Dungiven Road area, where pallets were placed on the road and set alight.
“This saw the main road closed for a time, causing disruption for local drivers.
08:07 EDT, 5 April 2021
Children as young as 12 were seen joining rioters pelting police with petrol bombs over anger at the decision not to prosecute Sinn Fein officials for attending an IRA terrorist s funeral.
Attacks in the Londonderry and Belfast areas have been on the rise lately due to post-Brexit trading arrangements which are claimed to have created barriers between Northern Ireland and the rest of the UK.
Officers came under attack in another night of senseless and reckless criminal behaviour in predominantly unionist estates in Londonderry from about 9pm onwards last night.
PSNI Chief superintendent Darrin Jones said: Again we saw our officers targeted, pelted with petrol bombs and masonry in the Dungiven Road area, where pallets were placed on the road and set alight.