A family of four have been robbed by a pair of moped-riding men with knives.

At about 5.45pm June 8, the four adults were sitting in their stationary car in Keats Way, Coulsdon when two men rode towards them on a silver moped.

One of the men threatened the victims with a large knife and demanded they hand over jewellery.

It is believed that the second suspect also had a knife.

A 30-year-old woman sustained a cut to her hand as one of the suspects attempted to take her bracelet. The other occupants of the car were a 66-year-old man and two women aged in their 70s.

The suspects made off with a small quantity of jewellery.

The suspects are described as two white men, aged in their late teens or early 20s. Both were of slim build and wore dark coloured tracksuits, black crash helmets and facemasks.

Anyone with information that may assist the investigation is asked to call Croydon CID via 101 quoting reference 6135/8jun.

To give information anonymously contact the independent charity Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org