Nigeria, Oct. 1 -- Former Nigerian President Olusegun Obasanjo has revealed how cement company Lafarge allegedly put obstacles in the way of Aliko Dangote's efforts to expand cement production across Africa.

Mr Obasanjo made the allegation in Nairobi, Kenya, while speaking at the groundbreaking ceremony of a $16 billion oil refinery project in Lamu, Kenya.

The meeting with Kenyan and other East African institutional investors is part of activities surrounding the ongoing initial public offering of Dangote Petroleum Refinery and Petrochemicals FZE.

Mr Obasanjo governed Nigeria between 1999 and 2007.

Mr Obasanjo said Lafarge was particularly opposed to Mr Dangote's expansion into cement production and described the company's actions in ...