A BBC Africa Eye investigation has revealed how women, known as "madams", have involved children as young as 13 in prostitution in Kenya.
In the transit town of Maai Mahiu, in Kenya's Rift Valley, trucks and lorries pound the streets day and night transporting goods and people across the country into Uganda, Rwanda, South Sudan, and the Democratic Republic of Congo.
The key transport hub, just 50km (31 miles) east of the capital, Nairobi, is known for prostitution, but it is also a breeding ground for child sexual abuse.
Two undercover investigators, posing as sex workers wanting to learn how to become madams, spent months earlier this year infiltrating the sex trade in the town.
Their secret filming reveals two different women who say they know it is illegal and then introduce the investigators to underage girls in the sex industry.
