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Reported sexual offences on trains have more than doubled in the past five years, according to statistics obtained by Â鶹Éç Radio 5 live.

Imogen Groome was assaulted earlier this year on the London Underground. She told 5 live Breakfast that she wishes she had reported the incident.

"It became obvious that this person was rubbing up against me, and this continued for about 10 minutes."

British Transport Police figures show 1,448 offences were reported in 2016-17, up from 650 in 2012-2013.

This clip is originally from 5 live Breakfast on Thursday 20th July, 2017.