Fire fighters were called to a recreation ground in Watford, after a member of the public reported a group of youths had deliberately started a fire.
The crew from Watford was called at 10.38pm to the recreation ground in Riverside Road on Thursday.
When the crew got there no action was required. The fire is being treated as deliberate.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here