A popular skate park has been targeted with graffiti.
Paint has been splattered across signs and bins at the skate park in Moor Park, which had previously been kept “pristine” by those who used it.
Community leaders have raised fears the vandalism could lead to further damage, and called for it to be cleared urgently.
Coun David Borrow, who represents Moor Park ward, said: “People have really looked after the skate park since it was constructed, and youngsters in Preston, I think, have had real pride in it.
“So it’s a real pity that somebody has messed part of the skate park and I hope it can be cleaned up as quickly as possible.
“It’s one of those things that’s been really successful and is valued by youngsters across the city.
“When you start getting a bit (of graffiti) it attracts more.
“It needs to be kept pristine and then people will continue to value and look after it.”
Deepdale councillor Terry Cartwright added: “I’m surprised it has been put on and nobody has seen them do it, because it’s well-used.
“The people I’ve met are really responsible young adults, they are mainly about 17.
“I think everybody has looked after it well up to now.
“It’s well used, it’s the best facility we’ve had on the park for a long time.
“I hope this is not going to continue. It’s a wonderful structure and it’s well-made.
“It’s a really good thing and I hope this is the first and last time they try to deface or damage it. “There’s always somebody who will do something, but the skate park is what they’ve been crying out for for a long time.”
Bosses at Preston Council said the issue had been raised by a “concerned member of the public”, and the graffiti was in the process of being cleaned.
The creation of the skate park is part of a multi-million pound makeover of the Grade II* listed park, which also includes improved drainage.
The park is being transformed in a £2.2m scheme to restore the green space, including making a new events area, and also creating a cafe.
An application was also submitted to increase the capacity of the park, as it bids to host more large-scale events.