KLAGTES: Stormy Daniels. Photo: Matt Sayles/AP

Charges filed against adult film actress Stormy Daniels over alleged inappropriate touching while she performed at a strip club in Ohio have been dropped, her lawyer said Thursday.

Daniels, who claims she and US President Donald Trump had an affair, was arrested while performing at Sirens Gentlemen's Club in Columbus, Ohio.

Her lawyer, Michael Avenatti, said Thursday the charges had been dropped.

"I am pleased to report that the charges against my client @stormydaniels have been dismissed in their entirety," he wrote on Twitter.

The tweet included image of the court document saying there was not "probable cause" for the charges to be pursued. Avenatti also thanked prosecutors "for their professionalism."

Avenatti said earlier Thursday that Daniels had posted bail of about 6,000 dollars and was released. The arrest was related to allegations of inappropriate touching while on stage and meant Daniels had to cancel further performances.

"I deeply apologize to my fans in Columbus," she said in a statement Avenatti quoted on Twitter.

The porn actress has risen to widespread fame since alleging she had an affair with Trump in 2006 and was paid hush money to keep quiet about it.

Avenatti initially said the arrest was "politically motivated" and a "setup."

"She was arrested for allegedly allowing a customer to touch her while on stage in a non-sexual manner! Are you kidding me? They are devoting law enforcement resources to sting operations for this? There has to be higher priorities," Avenatti wrote on Twitter.

Daniels has filed two lawsuits against Trump, who denies he had an affair with her in 2006.

The case also revolves around Michael Cohen, Trump's former lawyer who is under investigation for a range of financial matters, including a payment to Daniels that was apparently made right before the 2016 presidential election in the US.

Daniels, using Avenatti as her lawyer, is suing Trump and Cohen over the alleged non-disclosure agreement, trying to free herself from the deal.