CRISIS talks are set to take place between Oxfam and the Government today, following claims of sexual misconduct by aid workers.

International development secretary Penny Mordaunt will meet the Cowley-based charity this afternoon, having warned the 'scandal' had put its relationship with the Government at risk.

Oxfam has denied it tried to cover up the use of prostitutes by workers in Haiti in 2011, but faces mounting criticism over its handling of the allegations. 

Ms Mordaunt said the charity had failed to fully disclose details of its investigation into the misconduct to authorities.

Speaking on BBC1's The Andrew Marr Show yesterday, she said: "I am affording them the opportunity to tell me in person what they did after these events.

"I'm going to be looking to see if they are displaying the moral leadership that I think they need to now. 

"If the moral leadership at the top of the organisation is not there then we cannot have you as a partner."

Charities including Oxfam have been told they will have funding withdrawn if they fail to comply with authorities over safeguarding issues.

The Charity Commission has written to Oxfam to request further information, after it said a report on the investigation stated there had been no allegations of abuse of beneficiaries and made no mention of any potential sexual crimes involving minors.

Ms Mordaunt said the charity had also 'categorically' told the Department for International Development that beneficiaries were not involved in the misconduct and no harm was done.

Four members of Oxfam staff were dismissed and three, including the country director, resigned before the end of the 2011 investigation.

The charity said allegations that under-age girls may have been involved were not proven.

Ahead of its meeting, Oxfam announced a package of measures to improve safeguarding, including improved recruitment and vetting, a new whistleblowing helpline and a recommitment to report concerns to authorities.

Caroline Thomson, Oxfam's chairwoman of trustees in the UK, said: "It is not sufficient to be appalled by the behaviour of our former staff - we must and will learn from it and use it as a spur to improvement."

She added that concerns raised about the recruitment and vetting of staff involved in the scandal were being examined.