A 17-year-old boy had his mobile phone stolen at knife point while travelling home on the bus.
The teenager was travelling on the 134 bus on Friday, when two men approached him at around 4.15pm, as the vehicle travelled along Colney Hatch Lane in Muswell Hill.
One of the men said: "What have you got for us?" He then threatened the youth with a knife.
The other offender searched the victim's pockets, removing the mobile phone, which was worth £100. The two men then got off the bus.
Both men are described as black, around 5ft 9in tall and aged 18.
Anyone with any information can contact Detective Sergeant Amanda Collier on 020 8733 4595.
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