London rapper Wretch 32 has put his hearing to the test in a unique experiment as part of a new Network Rail safety campaign aimed at young men.
The video shows Wretch 32 and spoken word performer George the Poet battle to make a split second decision, relying only on their hearing to work out which direction a train is coming from as it travels towards them at 80mph in the dark.
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Officers believe the three assaults are linked and are appealing for information about the suspect.
Nine addresses in Lewisham were searched and 13 arrests made early on Tuesday morning in a planned, intelligence-led operation.
The Purple Rain singer died in April 2016