A TEENAGER was threatened with a knife before his mobile phone was stolen.

Police investigating the robbery have now released an e-fit image of a man they want to identify.

It happened at around 8.30am on February 5, between Manningham Lane and the corner of Church Street and Blenheim Road.

A West Yorkshire Police spokesperson said: "The suspect approached a 16-year-old male and asked if he could borrow his phone.

"The victim handed it over and the suspect produced a knife before running off with the handset. 

"No one was hurt."

Anyone who recognises the male in the efit is asked to contact Bradford District CID on 101, quoting crime reference 13190064460.

Information can also be reported using www.westyorkshire.police.uk/101livechat or anonymously to the independent charity Crimestoppers on 0800 555111.