Reports and arrests of unwanted sexual behaviour on the transport network in London have increased in the last year.

According to Transport for London (TfL), between April and December 2015, 438 arrests were made for unwanted sexual behaviour on the transport network, compared to 311 in the same period in 2014.

Between April and December 2015, 1,603 reports were made to the police, compared to 1,117 in the same period in 2014.

These reports were said to have resulted in a 40% increase in arrests for offences including rubbing, groping, masturbation, leering, sexual comments, indecent acts or the taking of photographs without consent.

A new campaign, Report it to Stop it' was launched by Met Police, TfL, British Transport Police (BTP) and City of London Police in order to instil confidence in those reporting such crimes.

'Report it to Stop it' encourages passengers to report any unwanted sexual behaviour they experience while travelling on the network.

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Superintendent Chris Horton from BTP said: "Tackling all forms of unwanted sexual behaviour on public transport is an absolute priority for the BTP and we have worked hard in recent years to send a clear message to victims that they will be taken seriously and we will investigate offences.

"Despite the improved confidence in reporting we have we will continue to encourage people to report any form of behaviour that makes them feel uncomfortable - that could be rubbing, leering, sexual comments, indecent acts or more serious sexual assault.

"We take every report of unwanted sexual behaviour seriously and our specially trained officers work hard to find those responsible, by speaking with witnesses and reviewing the extensive CCTV available to us on the rail network."

Those who fall victim to an offence should call the BTP on 0800 405040 or text on 61016. In an emergency always call 999.