CCTV images have been released of a man police want to speak to in connection with a robbery on a train.

The 18-year-old victim was listening to music on his smartphone when a man prised the phone off him and took his headphones from around his neck as the train left Penge East station.

After learning the victim had no money and threatening him to keep quiet about the incident, the man walked further down the train with both items.

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