Numerous police officers were called to a derelict pub after reports a man was seen on the roof.
Officers swarmed the Directors Arms in Borehamwood after receiving a call at 7.20pm on Saturday.
A member of the public had rang up to say they had seen someone on the pub roof – a building which is being demolished.
Police searched the Directors Arms and surrounding area but no suspect was found.
It is believed the man fled when alarms were activated.
Read more: The Directors Arms is closing and here is what is planned for the site
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