Work on the building was due to take place to enable children to use it
An investigation has been launched after a building within Arrasey Plantation was set alight.
Police believe it's a case of arson and happened over the past few days.
On social media, officers have described the situation as 'saddening'.
Anyone with information is asked to contact headquarters on 631 212.
SPC says project to replace Manannan ongoing despite claims from minister it's 'on pause'
Trial Deemster would likely have been replaced
Replica Christopher Columbus ship extends stay in capital
Local golf club celebrating 30 years of ladies section