Officials are investigating a fire that caused as much as $10,000 in damage Sunday to the public restrooms at Norcross Point in Winthrop. The town has been planning to replace the facility, seen in January, as part of a redevelopment project for which it is seeking grant funding. Joe Phelan/Kennebec Journal file

WINTHROP — A fire set inside the building that houses public restrooms at Norcross Point caused as much as $10,000 in damage Sunday, the last day the bathrooms were open for the season, according to police.

Chief Ryan Frost of the Winthrop Police Department said officers responded to the reported arson at about 2 p.m. and found a fire had been set inside the bathrooms at the town-owned waterfront park and boat landing facility. Police contacted the Fire Department, and firefighters responded quickly and extinguished the flames.

Frost said the fire caused an estimated $5,000 to $10,000 in damage.

The Office of State Fire Marshal is investigating the incident, according to police.

No arrests had been made as of Monday, and police said they did not have suspects.

Officials ask that anyone with information about the fire call Winthrop police at 207-377-7226.

The restrooms at Norcross Point, which are open seasonally, were closed after the fire.

Unrelated to the bathroom fire, town officials said they are seeking grant funding to redevelop Norcross Point, a proposal that includes replacing the restrooms.