Oxfam's deputy chief executive has resigned over the handling of a sex scandal involving aid workers.
The British charity is accused of concealing the findings of an inquiry into claims staff used prostitutes while delivering aid in Haiti in 2011.
Penny Lawrence said she was "ashamed" and takes full responsibility.
The Charity Commission has launched a statutory inquiry into Oxfam - which denies a cover-up - but details of its scope have not yet been released.
The watchdog says it has concerns the charity may not have "fully and frankly" disclosed everything it knew about the claims.
It comes after an earlier meeting with the International Development Secretary in a bid to protect Oxfam's funding from being cut.