The musician – who strongly denies the claims – is currently scheduled to perform with his band at two of the UK's biggest arenas next April
Warning: Contains graphic details of alleged sexual offences and misconduct, as well as strong language
Women's safety campaigners are calling for Thirty Seconds to Mars' upcoming concerts in the UK to be cancelled after frontman Jared Leto was accused of criminal sexual conduct.
A BBC investigation published last week heard from four women who have accused the US musician and actor of behaviour which includes sexual assault and grooming.
The alleged offences took place in the 2000s and 2010s when the women were teenagers and Leto was in his 30s and 40s. He is now 54.
The musician – who strongly denies the claims – is currently scheduled to perform with his band at two of the UK's biggest arenas next April.
The End Violence Against Women coalition and domestic abuse charity Women's Aid have told BBC Newsbeat they have concerns about the upcoming events in London and Manchester – urging organisers not to go ahead with them.
BBC Newsbeat has contacted the promoters, venues and the band for comment, but has not received any responses.
Leto's alleged victims say they encountered the musician between 2002 and 2016
A spokesperson for Women's Aid told Newsbeat it is "troubling to hear that UK concerts are still planned to go ahead that will put an alleged abuser in the spotlight".
"In light of the very serious allegations of criminal sexual conduct, we would urge organisers to put safety over profit and avoid platforming figures like this."
Janaya Walker, interim director of the End Violence Against Women Coalition, said she backed the charity's call.
"I think it really is about putting people over profit in this instance, and particularly women and girls' safety," she said.
Walker said tickets still being sold for Thirty Seconds to Mars' upcoming concerts at London's The O2 and Manchester Co-Op Live was "really worrying".
"Particularly for victims and survivors of violence against women and girls, they'll be seeing these reports and then seeing that things are moving forward seemingly without any consequence," she said.