At least five lawmakers, an aide to a top politician, senior Government officials and businessmen are among 30 individuals being investigated in connection with a multi-billion shilling scandal at the National Cereals and Produce Board, according to sources.

Prominent politicians from the Rift Valley are reportedly among eight traders paid Sh1.9 billion - which works out to Sh700 million in profits - for deliveries to the national strategic reserve that are believed to be cheap imports from Uganda.