Prosecutors in Kenya charged three Chinese men on Monday with trying to bribe detectives investigating fraud involving ticket sales on a $3.2 billion railway built by a Chinese company.

The charges are the latest in a series of high profile corruption prosecutions and come at a time of growing complaints about immigrants from China, a country that has played a key role in improving Kenya's infrastructure in recent years.

The men are senior employees with China Roads and Bridges Corporation, the company that constructed and runs the railway that opened last year between the capital and the port of Mombasa.