Prosecutors in Columbus, Ohio, on Thursday dropped all criminal charges against porn star Stormy Daniels, hours after police arrested her for alleged illegal physical contact with patrons at a local strip club during a peformance there, according to Daniels' lawyer.

The case's dismissal came after Daniels' hard-charging lawyer Michael Avenatti accused police of being politically motivated in their arrest of the actress, who claims she had an affair with President Donald Trump in 2006. The White House has denied her claim.

"This was a complete set up," Avenatti had said after Daniels' bust at the adult hotspot Sirens.

Avenatti posted on Twitter the motion to dismiss the case filed by Columbus City Attorney Zach Klein, which said "the State does not have probable cause to proceed on any of the charges set forth in the complaints."

In a memo supporting their decision, prosecutors wrote that police had charged Daniels with violating a law barring a person "who regularly appears nude or seminude on the premises of a sexually oriented business" from knowingly touching a patron while on the premises of that business.

"In this case, there has been no evidence provided to the State that Defendant appears or has appeared regularly at Sirens," according to that memo.

Daniels, 39, was taken into custody early Thursday morning by Columbus police, who said they had seen her forcing patrons' faces into her breasts during her show, and also smacking them in the face with her bosom. Cops said she did the same thing to several undercover vice officers, two of whom were women.

Daniels, whose real name is Stephanie Clifford, was freed several hours after her arrest after posting $6,000 bail.

She canceled a second peformance that had been scheduled for Thursday night in Columbus.