The chairman of under-fire British charity group Oxfam International, Juan Alberto Fuentes Knight, was arrested Tuesday in his native Guatemala in a swoop related to government graft allegations, officials said.
The allegations have led to the resignation of Oxfam's deputy chief Penny Lawrence and intense scrutiny from the British government, which partly funds the charity, to the tune of $44 million last year.
There was no suggestion of any link between the Guatemala graft accusations and the scandal engulfing Oxfam.
An Oxfam spokesperson said: "As far as we are aware, no formal charges have been made against Dr Fuentes Knight.
Oxfam International is a confederation of 20 non-governmental organizations that fight poverty in more than 90 countries.