A teenager has been arrested after a 13-year-old boy was allegedly robbed at knifepoint by a gang in Watford town centre.

The victim was targeted in Queen’s Road between 4pm and 4.20pm yesterday (Monday) while waiting outside a shop with two bikes belonging to friends.

Herts Police said a group of unknown males approached him and one asked if he could ride the bike before attempting to take it.

When the victim refused the male reportedly brandished a knife, following which the group left with both bikes.

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Officers scoured the area and a 13-year-old boy was arrested on suspicion of robbery.

A police spokesperson said he has been released under investigation while enquiries continue.

No one was hurt, they added.