US treasury secretary due in Senegal on Africa tour

US Treasury Secretary Janet Yellen arrives in Senegal on Friday at the start of an African tour.

She's expected to outline President Joe Biden's commitment to the continent and offer African governments and businesses an alternative stream of investment to that of China.

There's growing suspicion in many quarters over the terms of many of the loans offered by Beijing.

The US is yet to meet many of its own multi-billion dollar commitments, for instance on climate mitigation.