Sources revealed that the 39-year-old actor worked with an adoption agency for six months to before all the formalities were wrapped up and has adopted an African-American girl, who was born in the United States, reported TMZ.com.
The Monster star took custody of the newborn in July and has named her new baby girl August.
Previously in 2012, the actor adopted her son, Jackson, from South Africa.
Watch Charlize talk about marriage and single-motherhood here
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