Anti-corruption agents arrested two former aviation ministers under investigation for allegedly misusing funds meant to improve Nigeria’s commercial air sector after hundreds of people died in three separate accidents, officials said Tuesday.

Members of the Economic and Financial Crimes Commission detained Babalola Borishade and Femi Fani-Kayode late Monday in the capital, Abuja, and the pair was still being questioned Tuesday, said Femi Babafemi, a spokesman for the agency. Babafemi said neither had been charged with any crime and the former ministers weren’t immediately available for comment.

Both served as aviation ministers under former President Olusegun Obasanjo, who left office in May 2007.

Fani-Kayode replaced Borishade in February 2006, days after a Boeing 737 crashed shortly after takeoff, killing 96 of the 105 people on board. More than 200 others died in two separate accidents in the months before that.

Lawmakers are investigating the men in connection with the alleged misuse of a $165 million fund meant to boost safety in Nigeria’s air industry after the accidents. The anti-corruption agents arrested both men shortly in connection with the fund, Babafemi said.

Nigeria is routinely ranked one of the world’s most-corrupt nations and has a poor air-safety record.