Police have released images of three men they want to speak to in connection with a number of robberies in the Hackney area during November.
Detectives are investigating 11 robberies which took place along Narford Road and Brooke Road, close to Rectory Road London Overground station, between 5 November and 25 November.
All of the robberies took place between 18:00hrs and 02:00hrs and in each case the victim was threatened with weapons, including knives.
Quantities of cash are reported to have been stolen, as well as a number of debit cards.
The suspects are described as black, between 18 and 25 years of age and wearing dark clothing.
Although each robbery was carried out by just one suspect, officers believed them to be linked and the men to be known to each other.
Detective Constable Alexander Cochrane-Dyet said: “The victims in these cases have faced a horrifying ordeal and we want to bring those responsible to justice.
“We are appealing for these men or anyone who recognises them to come forward and assist our investigation.”