Footage has been released showing two men police want to speak to in connection with a street robbery in Preston city centre.
Two teenagers and a 19-year-old man were approached by three men close to the Liberty student flats in Great Shaw Street.
One of the trio threatened the boys and man with a torch-like object claiming it was a taser.
A second man then approached the victims with a metal chain wrapped around his fist.
The victims, aged 15, 16 and 19, had an iPhone 7, Samsung Galaxy S8, Windows smartphone and a gold coloured Casio watch taken during the incident which took place between 2am and 3am on Monday 3 July.
DC Abid Majid from Preston CID said: “This must have been terrifying for the victims, especially given that one of them is just 15.
“One of the men involved has been brought to justice however we are still committed to finding the other two responsible.
“If you recognise the men pictured, please come forward. Similarly if you have any information that you think may help us with our investigation, please get in touch.”
Read more: Knifepoint robbery at store in Penwortham
In August, Joshua Penny, 20, of Lawson Street, Preston pleaded guilty to robbery in relation to this incident. He was sentenced to 24 months imprisonment.
Police have released descriptions of the two men police want to speak to.
The first man is white, around 6ft to 6ft 4ins tall, of stocky build and spoke with an Irish accent. He was wearing a hat, a dark cream jacket with red zips and dark baggy jeans.
The second man is white, aged around 18 to 19 years old, 5ft 10ns tall, of slim build. He wore a black and white Nike jacket and black Nike joggers.
Anyone with information is asked to call DC Abid Majid on 01772 209669 or if they fail to get an answer, 101, quoting incident reference LC-20160703-0498.