(Sept 13): Olam Group Ltd’s shares closed at the lowest level in more than 14 years as allegations of fraud in Nigeria continue to weigh on the company.

The Singapore-based agribusiness said it has been notified by Olam Nigeria that the unit had posted a bond for director Prakash Kanth to secure his cooperation with “any legitimate requests from relevant Nigerian authorities for information or assistance,” according to a filing on Wednesday.

Olam has denied allegations of a multibillion fraud in the African nation and has ordered a review after local news reports on the matter.

Its shares tumbled as much as 9.6% before paring losses and closing at the lowest level since March 2009. The company has shed 14% of its value since the allegations emerged at the start of the week.