Detectives are searching for a 29-year-old man in connection with an armed robbery after staff at Marks & Spencer in High Wycombe Retail Park were threatened with an axe.

A robber took cash from the tills of the store in Ryemead Way, London Road, after threatening workers with the weapon at about 7.25pm on Saturday.

The offender fled the shop on a bicycle and no one was injured.

Officers are now keen to speak to Darren Robertson, pictured, as they believe he may have information which could help with the investigation.

Members of the public are advised not to approach him but to call police with any information which could lead to his whereabouts.

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High Wycombe Retail Park.

They added that he also goes by the name of Esa Muslim-Ali.

A shop and petrol station in Stoke Poges and Slough were also targeted by an axe-wielding robber last week. Police have not suggested the incidents are linked.

If you have any information which could lead to Darren’s whereabouts call the 24-hour Thames Valley Police enquiry centre on 101.

Alternatively, speak to Crimestoppers anonymously on 0800 555 111 or online at www.crimestoppers-uk.org