From the May 19, 1907 New York Times:

“Berlin–The Cologne Gazzette reports that fearful cannibalism is still practiced in the German West African protectorate of Kamerun.

A German merchant writes to the newspaper that the natives not only devour their enemies, but also criminals and persons who have been locked up for trivial offenses. The merchant escaped the fate with difficulty. 

Kaka natives, he writes, offer human flesh for sale in the public market, to provision which death sentences are imposed for the most trivial offenses.”