Armed police, dogs and a helicopter were out searching for a man seen carrying a bladed article in Hitchin on Friday.
Officers were called shortly after 5.15pm to reports of a man cycling through Bancroft Park with a knife.
It was reported that he got off his bike and started to hit the ground with the object before leaving the area.
Officers, including armed police, attended and an extensive search was carried out with assistance from the police helicopter and dog unit.
The man was not traced and enquiries are continuing at this time. No one was injured during the incident.
An eyewitness who saw armed police searching the area told the Comet: βIt was quite frightening. I was born and bred here and I never thought I would see that happening in Bancroft.β
Anyone with information should contact police on 101 or online via herts.police.uk/report.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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