Evidence taken from the uniform of a hotel maid matches a DNA sample provided by Dominique Strauss-Kahn, the former head of the International Monetary Fund (IMF) accused of sexually assaulting the woman, US news reports said Tuesday.
The evidence collected from the uniform was semen, The Wall Street Journal reported, citing unnamed law enforcement officials.
Another unnamed source briefed on the findings was quoted by The New York Times as saying that the evidence could support both the accounts made of the May 14 incident at the Sofitel New York hotel by the prosecution, which said it was a forced encounter, and the defence, which said it was consensual, dpa reported.
The evidence were the first to confirm a sexual encounter had occurred between Strauss-Kahn, 62, and the maid, 32.
Test results from forensic evidence collected from a carpet in Strauss-Kahn's suite has yet to be released, the Times said.
Strauss-Kahn, who resigned last week as the IMF's managing director while professing his innocence, has been charged with sexual assault and attempted rape. He had been touted as a French presidential front-runner in next year's elections before the charges.
The former French finance minister submitted to a DNA test shortly after his arrest.
He was held in jail until Friday and released to a Manhattan apartment after posting 1 million dollars in cash and a 5-million-dollar bond and agreeing to round-the-clock monitored home confinement.