R1b1* is found in northern Cameroon in west central Africa at a very high frequency, where it is considered to represent an early back-migration from Asia. R1b1 reaches a maximum frequency of more than 90% among the Kirdi. R1* (which seems likely also to be R1b1, though not tested for M343 and P25) was also reported in the Bantu of southern Cameroon, and in Oman, Egypt, and the Hutu of Rwanda. Again the authors of the study felt that their data suggested an ancient back migration from Asia to Africa. Another example of R1b1* was discovered in Guinea-Bissau. Further examples have been found among speakers of a variety of different languages in Sudan. The authors of another study have reported finding R1b1-P25(xR1b1b2-M269) Y-DNA in 3% (1/32) of Fante from Ghana, 95% (18/19) of Podokwo from northern Cameroon, 61% (17/28) of Mandara from northern Cameroon, 69% (9/13) of Uldeme from northern Cameroon, 67% (6/9) of Tupuri from northern Cameroon, 9% (1/11) of Bassa from southern Cameroon, 4% (1/24) of Herero from Namibia, 5% (1/22) of Ambo from Namibia, 4% (4/92) of Egyptians, and 4% (1/28) of Tunisians.