Senior aid workers for one of Britain’s biggest charities were accused of paying survivors of the Haiti earthquake for sex.

Three Oxfam employees were allowed to resign and four were sacked for gross misconduct after an internal investigation found some workers had used prostitutes in the war-torn region.

The former director in the country was also accused of inviting prostitutes to his flat rented by Oxfam, according to a leaked report seen by the Times.

Oxfam was also accused of covering up evidence as the Charity Commission said it had never been shown the specific allegations of sexual abuse mentioned in the 2011 investigation report.

Oxfam Director Roland van Hauwermeiren admitted using prostitutes in the wake of the Haitoan earthquake but was not part of the 'Caligula' claims

Director Roland van Hauwermeiren, 68, was allowed to resign in August 2011 just a week after an internal investigation was announced.

But according to the leaked report, Mr van Hauwermeiren admitted using prostitutes at the villa Oxfam rented for him in Haiti, though his case is separate from the orgy claims.

He later resigned from his post.

In separate claims made against charity workers, one source told the paper employees organised a ‘full-on Caligula orgy’ filled with girls dressed in Oxfam T-shirts.

They claimed staff had recorded videos of the night, but Oxfam said no recording had been submitted to the investigation.

Even though some of the employees who contacted the Times said they were concerned aid workers had sex with under-age girls. The report found the claim could not be ruled out.

In early August 2011, it was reported a ‘small number’ of employees were being investigated over allegations of gross misconduct.

Other Oxfam workers, not thought to be British, left as a result of the investigation.

Three Oxfam employees were allowed to resign and four were sacked for gross misconduct after an internal investigation found some workers had used prostitutes in the war-torn region (file photo)

A spokesman at the time confirmed allegations of misconduct ‘are not connected to any incidents of fraud’.

The Haitian earthquake, which hit the capital Port-au-Prince in 2010, killed 220,000 and injured 300,000.

In the first wave of humanitarian aid after the earthquake, Oxfam helped around 700,000 people in the Caribbean country.

Oxfam has been working in Haiti since 1978.

A Charity Commission spokesman said: ‘In August 2011, Oxfam made a report to the Commission about an ongoing internal investigation into allegations of misconduct by staff members involved in their Haiti programme.

The report explained that the misconduct related to inappropriate sexual behaviour, bullying, harassment and the intimidation of staff.

The former director in the country was also accused of inviting prostitutes to his flat rented by Oxfam, according to a leaked report (file photo)

The report did not detail the precise allegations, nor did it make any indication of potential sexual crimes involving minors. However, the charity’s internal investigation was still ongoing.

‘We are currently engaged with the charity regarding its approach to safeguarding following more recent allegations.

As part of that, we have already asked the charity to review historic safeguarding allegations and its response to them at the time.

We expect the charity to include in their review incidents that occurred in 2011. We will expect the charity to provide us with assurance that it has learnt lessons from past incidents and is taking all necessary steps to safeguard all who come into contact with it.’

In October last year, the Times also reported seven senior officials at the charity have been investigated for misconduct including sexual harassment.

There were 87 cases of alleged sexual exploitation in Oxfam between 2016 and 2017.

An Oxfam spokesman said: ‘This was not a cover-up. Oxfam treats any allegations of misconduct extremely seriously. As soon as we became aware of the allegations in Haiti in 2011 we launched an internal investigation.

Oxfam was also accused of covering up evidence as the Charity Commission said it had never been shown the specific allegations of sexual abuse mentioned in the 2011 investigation report (file photo)

'The investigation and its outcome were publicly announced and we kept Oxfam Trustees, the Charity Commission and the DFID informed.

‘Allegations that underage girls may have been involved were not proven.

‘A number of staff were dismissed as a result of the investigation and others left the organisation before it was completed

‘The country director took full responsibility for events that took place under his management and was permitted to resign on the basis that he fully cooperated with and supported the investigation.

‘After the investigation, we carried out a thorough review of the case which resulted in the creation of our dedicated Safeguarding Team and a confidential 'whistleblowing' hotline as part of a package of measures to ensure that we do all we can to protect our staff, prevent sexual abuse and misconduct happening in the first place and improve how we handle any allegations.’