A man was chased by three others before being knocked to the floor and beaten and kicked for more than 30 seconds.
Tenbury Wells police want to hear from anyone who saw the serious assault in Teme Street, Tenbury Wells, between 4.25pm and 4.35pm on Saturday.
Officers believe that a number of passers-by may have seen the assault.
A police spokesman said: “The victim was assaulted on the side of the road outside the ‘Nice Things’ shop and a number of pedestrians and people passing by in vehicles are certain to have seen it.”
“We would urge anyone who saw anything of this vicious assault to come forward so that we can bring the three assailants to justice.”
Anyone with information is asked to call police on 0300 333 3000, quoting 509S/211109. Information can also be given – anonymously and free-of-charge – to Crimestoppers on 0800 555 111.
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