Russell Brand allegations: What is the star accused of?

Russell Brand is facing accusations of rape, sexual assaults and emotional abuse over a seven-year period.

The actor and comedian is also said to have behaved inappropriately at work during the height of his fame, including by undressing, making sexual remarks and acting aggressively.

Brand denies the allegations, revealed in a joint investigation by the Sunday Times, the Times and Channel 4's Dispatches, and says his relationships have been "always consensual".

Here, BBC News sets out what the star is accused of - and how he has responded. Warning: this article contains some graphic details about the alleged acts.

Four women are alleging sexual assaults between 2006 and 2013:

On Friday, the day before the investigation was published online, Brand shared a video on social media where he denied the allegations.

In it, he denied "serious criminal allegations" he said were to be made against him, and said his relationships "were absolutely, always consensual".

The actor and comedian said he had received letters from a TV company and newspaper containing "a litany" of "aggressive attacks".

The 48-year-old said he believed he was the subject of a "co-ordinated attack" and was going to look into the matter because it was "very, very serious".

Within hours of the allegations being published on Saturday, Brand performed a scheduled comedy gig at the 2,000-capacity Troubadour Wembley Park Theatre in north-west London, as part of his Bipolarisation tour.

During the set, Brand alluded to the accusations but did not address them directly. He told the audience there were things he wanted to talk about but could not.

Other claims made as part of the investigation relate to Brand's allegedly controlling, abusive and predatory behaviour, and inappropriate behaviour in the workplace.

During the years covered by the allegations, Brand had various high-profile jobs at different times, including at BBC Radio 2 and Channel 4, and as an actor in Hollywood films.

His attitude towards women was "an open secret" in radio and TV production, sources told the Sunday Times.

It is alleged that Brand would undress in the studio while working as a presenter on BBC Radio 6 Music. Dispatches also said Brand made sexual remarks on air about a newsreader, which he later implied he had been told by BBC production staff to apologise for.

The Sunday Times said sources had told the newspaper that a complaint was made to BBC management about an "alarming display of aggression and disrespect" from Brand. This is said to have included Brand throwing objects across a Radio 2 studio and urinating in a bottle in front of staff and guests, including a minor.

The newspaper also said TV researchers and runners working on Channel 4 shows alleged that Brand would get staff to approach young female audience members so he could meet them after filming, some of whom were later upset by how they felt they had been treated by him.

Other allegations include:

On Sunday the BBC noted Brand worked on BBC radio programmes between 2006 and 2008, and said it is "urgently looking into the issues raised" by the allegations.

In an earlier statement on Saturday, the BBC said it had "clear expectations around conduct at work", adding: "We will always listen to people if they come forward with any concerns, on any issue related to any individual working at the BBC, past or present."

Channel 4 has announced its own internal investigation and encouraged "anyone who is aware of such behaviour to contact us directly".

In a statement on Sunday it said it was "appalled" to learn of the "deeply troubling allegations, including behaviour alleged to have taken place on programmes made for Channel 4 between 2004 and 2007".

It said it was determined to understand what went on and said it had found no evidence that the alleged incidents had been previously brought to its attention.

Separately, production company Banijay UK has also launched an "urgent" internal investigation into allegations about Brand's time presenting programmes screened on Channel 4 and E4.

While not referring to the comedian by name, the Metropolitan Police said it was "aware of media reporting of a series of allegations of sexual assault" but had not received any reports.

"If anyone believes they have been the victim of a sexual assault, no matter how long ago it happened, we would encourage them to contact police."

In a further statement on Sunday, the Met said it had spoken to the Sunday Times and would be making further approaches to the paper and to Channel 4 "to ensure that any victims of crime who they have spoken with are aware of how they may report any criminal allegations to police".

Also on Sunday, the Los Angeles Police Department said it had not been notified "of any incidents, reports or allegations regarding Russell Brand or any of the accusers".

It could not immediately confirm reports of an LAPD officer being alerted by a rape crisis centre in 2012 about one of the accusers being treated there following an incident with Brand.