The 31-year-old Brown, known as Scary Spice when she was in the megahit group of the '90s, gave birth to the child April 3 in Santa Monica, California.
Brown's publicist, Nadine Bibi, did not immediately respond Friday to an e-mail from The Associated Press asking for details.
Arnold Robinson, a spokesman for Murphy, declined comment.
Brown has said ex-boyfriend Murphy is the father. The 46-year-old "Dreamgirls" star has said he is not sure, while Brown has said there is "absolutely no question that Eddie is the father."
Brown has an 8-year-old daughter, Phoenix Chi, from her marriage to Jimmy Gulzar.
Murphy has five children from his marriage to Nicole Mitchell Murphy.
The majority of experts in the field of armaments admit that made-in-Russia weapons can be referred to as best weapons in the world. To substantiate this point, suffice it to recall that many countries make their own ripoffs of world-famous Russian weapons.