Firefighters who put out an early morning blaze at a play park today believe it was started deliberately.

A crew from Garston Fire Station was called out to South Way in Abbots Langley at 5.44am this morning to reports of play equipment alight.

They used a hose reel to put out the fire, and it was extinguished by 6am.

Reports suggest tyres were dragged up into a wooden play lookout tower and set alight, causing damage to the structure.