Two more women have been arrested for abusing disabled patients at Winterbourne View care home following a BBC Panorama investigation.

The pair, aged 21 and 22, were arrested on Monday on suspicion of assault and mistreatment of patients and released on bail after questioning.

A total of six people have now been arrested following undercover filming at the Winterbourne View home in Bristol, while 13 staff have been suspended.

Three men, aged 42, 30, and 25 and one other woman aged 24 were arrested on May 31.

A spokesman for Avon and Somerset Constabulary said: “Officers have arrested two women aged 22 and 21 on suspicion of assault and mistreatment.

“They have both been bailed. Six people have now been arrested as part of this investigation.”

The five-week undercover BBC investigation, which went to air last Tuesday night, filmed abuse at the privately-owned, purpose-built, 24-bed facility.

Footage showed disabled adults, residents of Winterbourne View, being slapped, kicked, sat on and drenched with water.

BBC Panoram care home investigation leads to four arrests

They were tipped off by whistle-blower Terry Bryan, a former senior nurse at Winterbourne View, who insisted he repeatedly approached authorities with his concerns about its care.

BBC Panorama journalist Joe Casey wore a secret camera to film apparent shocking scenes of abuse on patients by staff who were meant to be looking after them.

The footage showed some of the hospital’s most vulnerable patients, who suffer from autism and learning difficulties, being repeatedly pinned down.

Some were slapped and dragged into showers while fully clothed, while others were taunted and teased.

Casey said in the BBC documentary: “On a near-daily basis, I watched as some of the very people entrusted with the care of society’s most vulnerable targeted patients – often, it seemed, for their own amusement.

“They are scenes of torment that are not easily forgotten.”

Andrew McDonnell, a leading expert in working with adults with mental disabilities, described the scenes as torture.

Whistle-blower Terry Bryan said: “I have seen a lot over 35 years but this I have never seen anything like this. It is the worst I have seen.

“These are all people’s sons, daughters, parents, aunties, uncles. These are all people who have got families – the families themselves do not know what goes on there.”

Bryan said he reported his concerns to both management at Winterbourne View and to the government regulator, the Care Quality Commission (CQC), but no action was taken.

Winterbourne View’s owners, Castlebeck, have launched an internal investigation into their whistle-blower procedures and are reviewing the records of all of their 580 patients in 56 facilities.

The vulnerable patients filmed by Panorama have been moved to safety and 13 staff have been suspended.

The hospital charges taxpayers an average of £3,500 per patient per weekend. Castlebeck has an annual turnover of £90m.