Toilet fire at Linwood park

A fire in the toilets of a Christchurch park on Tuesday is being treated as suspicious.

A Fire and Emergency New Zealand spokeswoman said they received reports of smoke coming from the facility in Linwood Park at about 4.47pm.

"It was a small fire that was contained to the concrete toilet block. We were able to put it out with a bucket of water."

The spokeswoman said police are investigating the incident.