Britain's secretary for global development, Penny Mordaunt, said Sunday that the way allegations of sexual misconduct were handled by Oxfam was "shocking" and demonstrated an "absolute absence of leadership".
Oxfam Canada executive director Julie Delahanty said she assured the government that no staff or funds from her organization were involved in the Haiti allegations.
The allegations revolve around Roland van Hauwermeiren, who was Oxfam's country director for Haitiand was previously the head of the charity's mission in Chad. "And compels us to take action", she is expected to say.
Revelations around the handling of sex allegations at Oxfam should be a wake-up call to the charity sector, the International Development Secretary said.
Even in this time of #MeToo revelations, allegations of misconduct against seven former aid workers with Oxfam Great Britain are particularly shocking.
"Over the last few days we have become aware that concerns were raised about the behaviour of staff in Chad as well as Haiti that we failed to adequately act upon".
Ms. Bibeau said the government acknowledges the potential for sexual exploitation in humanitarian crises and ensures there is a strict code of conduct in place when it agrees to provide an aid group with Canadian funding.
Oxfam's Deputy Chief Executive Penny Lawrence resigned on Monday over the handling of the scandal and the United Kingdom government threatened to cut funding to the charity's projects.
Oxfam has apologised for the behaviour of aid workers, but denies a coverup, the CNN said.
Oxfam now faces a battle to prevent other high-profile ambassadors from stepping down as well as making sure the United Kingdom government does not withdraw the £32 million (Dh163m) of funds it receives.
"No organisation is too big, or our work with them too complex, for me to hesitate to remove funding from them if we can not trust them to put the beneficiaries of aid first", she said.
Mr MacLeod said charities were not above the law and at the very least they should have reported the crimes to the Haitian police force.
A spokeswoman told Sky News: "This clearly raises issues for United Kingdom charities about recruitment, vetting and references for charity personnel, particularly in the context of worldwide aid work to ensure that people who pose a significant risk to charities, their work and reputation are not allowed to infiltrate the charity sector".
The Government spent £13.4bn on foreign aid previous year, which is 0.7% of GDP.