Police are issuing another appeal for information following a knifepoint robbery in Thornton Heath last month.
The appeal was made last night during BBC's The One Show.
Video which emerged following the attack which showed two women in their 60s being approached by four men riding mopeds in Bensham Manor Road on September 20.
During the incident, the passengers got off the bikes and reportedly threatened the victims with a knife, before snatching four gold chains from the victims' necks.
A male witness tried to intervene but was thrown to the ground by one of the suspects.
They then drive off on their mopeds down Whitehorse Lane.
So far there have been no arrests made.
The suspects are described as three white maes and one black male.
Anyone with information is asked to call Croydon CID on 101.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article