2 firefighters wearing breathing apparatus have entered the building and are using a hose reel to extinguish the fire.
Its understood a waste bin has ignited, causing heat damage to a towel dispenser also.
The alarm was raised by a member of the public shortly before 15:30.
UPDATE @ 16:31 – Positive Pressure Ventilation has been used to rid the gentleman’s toilet of smoke.
Unfortunately, the apparent deliberate act has forced the closure of the public convenience.
Crews have now stood down from the incident.