Madagascar
Linguistic and archaeological evidence about the origins of the Malagasy, the indigenous peoples of Madagascar, points to mixed African and Indonesian ancestry.
Equal African and Indonesian flows contribute to both paternal and maternal Malagasy lineages. (15793703)
The most likely origin of the Asia-derived paternal lineages found in the Malagasy is Borneo. This agrees strikingly with the linguistic evidence that the languages spoken around the Barito River in southern Borneo are the closest extant relatives of Malagasy languages. (15793703)
References
Hurles ME, Sykes BC, Jobling MA, Forster P. The dual origin of the Malagasy in Island Southeast Asia and East Africa: evidence from maternal and paternal lineages. Am J Hum Genet. 2005 May;76(5):894-901. PMID: 15793703