A FIRE broke out at a National Heritage site in Oxfordshire after a visit from teenagers.

Crews from Didcot were sent to Wallingford Castle Gardens on Tuesday to a report of trees on fire.

On arrival, firefighters had difficulty gaining access to the blaze and then getting water to it to extinguish it.

ALSO READ: Plan for 402 flats and 133-bed hotel in Oxford opposed by GPs 'without capacity'

A spokesperson for Oxfordshire Fire and Rescue Service said: "Nothing is more frustrating for the fire and rescue service than being tied up for well over an hour at an incident that was a deliberate act and took vital and scarce resources away from where they may have been more urgently needed.

"If you have teenage children that are out and about in Wallingford in the evening, then please highlight the dangers of lighting deliberate fires, not to mention committing acts of criminal damage on a National Heritage site and wasting valuable fire service resources."