Another woman is expected to come forward on Friday with new allegations of sexual assault against Donald Trump, just as the Republican presidential nominee prepares to release "substantial evidence" that he claims will exonerate him from separate accusations that surfaced earlier this week.

The latest woman, whose identity remains unknown, is slated to appear at a press conference Friday afternoon with anti-discrimination lawyer Gloria Allred, according to a press release. Allred is representing the woman who has accused Trump of "victimizing her with inappropriate sexual conduct."

Trump's campaign has vehemently denied the recent accusations against him and blasted the media outlets that have covered them, claiming the New York Times, People Magazine and others are involved in a coordinated effort "to elect crooked Hillary at any cost."

"They will attack you, they will slander you, they will seek to destroy your career and your family. They will seek to destroy everything about you, including your reputation," he told supporters at a rally on Thursday. "They will lie, lie, lie and then again, they will do worse than that."

More than a half-dozen women have come forward so far to accuse the GOP nominee of touching them inappropriately, groping them without their consent or making lewd comments in their presence.

The list includes four former Miss Teen USA contestants who accused the billionaire of walking into their dressing room while they were changing, a former reporter who claimed Trump attacked her while she was visiting his Mar-a-Lago resort in West Palm Beach, Fla., and a traveling businesswoman who sat next to Trump on a flight to New York in the 1980s and alleges that he grabbed her breasts and tried to reach up her skirt, among others.

"Donald Trump yesterday categorically denied that these things happened, and I believe him," Republican vice presidential candidate Mike Pence told Fox News on Friday.

Allred's press conference with Trump's latest accuser will be held at 2:30 p.m. ET, at which time this story will be updated.