The cost of repairs to a block of public toilets on Clacton seafront is likely to top £2,000 following an arson attack.
Part of the roof of the building on the Lower Promenade below Marine Parade East was badly damaged on Saturday afternoon and will need extensive works carried out.
The site is run by Tendring District Council (TDC) and it has had to be closed until the roof has been checked over and a quote obtained.
Fortunately crews from Essex Fire and Rescue Service were on the scene quickly and had the blaze out within half an hour.
There was also some water damage inside the building and that will also need to dry out.
Children were seen in the area of the toilets at around that time and an appeal has been made for any witnesses to come forward.
Mick Skeels, TDC’s Cabinet Member for Leisure and Tourism, said he hoped those responsible will be caught.
"We were alerted to the fire by a member of the public via our Careline Team and luckily fire crews were there very quickly and prevented further damage," he said.
"Any repairs will have to be paid for out of the public purse and an early estimate is around £2,000.
"We will also need to keep the site closed until such time we can get it repaired and back in use. This will be done as quickly as possible."
The fire was spotted around 3.45pm on Saturday and anyone with information should call the Council on 01255 686772 or the Police.