Christmas decoration vandals have targeted trees across Londonderry on six separate occasions.
Derry City and Strabane District Council said that "extensive damage" has been caused to trees in Waterloo Place in Derry and Glenmoran Village outside Strabane in the last week.
It's the second warning from council following a string of attacks throughout the North West since the switch-on ceremonies.
Council’s Head of Environment, Conor Canning, warning of the potential dangers of interfering with lights, he said:
“Unfortunately since we issued our appeal last week, further damage has been caused to trees in the city and district so we must repeat our appeals for the public to show respect before a serious incident occurs.
Following further damage to Council's Christmas trees in recent days, we would like to renew our appeal for respecthttps://t.co/4z1XnnUA2W pic.twitter.com/6rjipmo68v
— Derry Strabane Cncl (@dcsdcouncil) December 16, 2016
“While it may seem harmless, it is potentially very dangerous given the electrical equipment involved and the size of the trees Council has erected.
“We would like to remind people that the decorations are there for everyone to enjoy throughout the festive season.
“We also urge the public to be vigilant of any vandalism and to report any incidents they witness to the PSNI.”