A TEENAGER who held up three students at knife point during a week-long robbery spree in Sheffield city centre has been locked up for five years.
Failed asylum seeker Yaya Bah, who was in the country illegally, will be deported back to his native New Guinea once he has served the term at a Young Offenders’ Institute.

Sheffield Crown Court heard the 18-year-old targeted students walking alone in the city centre on three different occasions last October.

The first attack happened on October 3 when a man was walking towards West Street to meet friends for a night out.

Bah, of Rockingham Street, city centre, demanded the man’s mobile phone before threatening him with a three-inch flick knife. Instead the victim offered him £25 which Bah accepted before he fled.

The second attack happened in Cambridge Street when a man was walking to a cash machine on October 5.

Bah demanded the man’s phone and money while brandishing the knife and ordered him to turn out his pockets. He escaped with £5 and the mobile.

The final robbery took place in Fitzwilliam Street at around 5am on October 7, when the victim was on his way to a cash machine. with the man’s wallet and phone.

The spate of incidents led to increased police patrols in the area and Bah was arrested on October 10.

He was picked out in identity parades by all three victims.

Bah also admitted a further unarmed robbery the previous July when he made off with a mobile phone worth £450 belonging to a 24-year-old Sri Lankan student who was attacked on Matilda Street.

He pleaded guilty to four counts of robbery.

Sentencing him to five years in custody for each of the attacks to run concurrently, the Recorder of Sheffield Judge Alan Goldsack QC said: “On each of these occasions you terrified your victims by producing a knife and caused them to fear that you would use it on them.

These are offences which cause considerable consternation in any city.”