A knife wielding robber has escaped with cash after a lunchtime raid on a Mitcham dentists' surgery.

The thief struck in London Road about 12.05pm today, and the target is thought to have been the Mikradent Dental Lab.

A police spokesman said that a woman in her 40s received slight injuries during the raid and was treated at the scene for cuts to her hand.

The robber is a white man in his 20s, who was seen wearing a grey hooded top. The police are hunting for the suspect, who escaped with an unknown amount of money.

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