Sussex Police are appealing for witnesses following a reported robbery on King Edward Parade near the junction with Bolsover Road, Eastbourne.
The incident happened at around 10.30am on Wednesday, 24 August.
Police confirmed that a 63-year-old man has been arrested on suspicion of robbery and has been bailed while enquiries continue.
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Investigators are now urging anyone who witnessed the incident, or who may have CCTV or mobile phone footage, to come forward.
Information can be reported online or by calling 101, quoting serial 518 of 24/08.