(CNN) A DNA test has "established with scientific certainty" that Hunter Biden, the son of former Vice President Joe Biden, is the father of an Arkansas woman's baby, according to a motion filed Wednesday by the woman.

The filing says Hunter Biden "is not expected to challenge the results of the DNA test or the testing process."

Hunter Biden had denied in a previous court filing that he had fathered the child, but agreed in October to a paternity test.

Neither Joe Biden's campaign nor an attorney for Hunter Biden immediately responded to requests for comment. When asked about it on Thursday in Atlanta, the elder Biden replied, "that's a private matter, I have no comment."

It's the latest development to thrust the former vice president's son into the spotlight as Joe Biden seeks the Democratic 2020 presidential nomination. The news came just hours before 10 Democratic contenders met in Atlanta for a debate.

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