A man has been arrested after a video showed an attacker running towards people with a knife.
The incident in Slough High Street was caught on camera and shared on social media on Saturday, September 2.
Police said they received reports at around 4.20pm of an "assault with injury".
A 55-year-old man from Slough was arrested on suspicion of robbery and remains in custody at this time.
A Thames Valley Police spokesman said: "Officers are currently investigating the incident.
"Anyone with information in relation to the incident can call 101 quoting 43230393456."
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