NEW YORK – Yoko Ono’s chauffeur attempted to extort $2 million from her on the anniversary of John Lennon’s slaying by threatening to release personal recordings and intimate photographs of her, police said Wednesday.

Ono’s once-trusted driver Koral Karson, 50, allegedly threatened to go public with photos of her wearing pajamas and tapes of her private phone calls if she refused to give him millions of dollars.

He also made bizarre comments about trying to kill her and her son, Sean Lennon, police sources said.

“She felt vulnerable. He knew that she knew what was on the tapes,” said a police source, suggesting the contents where of a personal nature.

Karson – a Turkish immigrant who once served in Turkey’s military – tormented Ono with his ultimatum on Friday, the 26th anniversary of her husband’s murder at the hand of a crazed fan, police said.

Police had planned to set up a sting operation to bust Karson, but moved in quicker after he allegedly told a co-worker on Tuesday that he had been trying to kill Ono.

“He told the employee that he had been injecting her with poison while she was sleeping – and that he could have killed her at any time,” a police source said.

Police busted Karson Wednesday at his New York home and later removed boxes containing tapes and two computers from the house. The blue-eyed, silver-haired suspect denied any wrongdoing – and accused the 73-year-old avant-garde artist of sexual harassment last night as police led him from the 20th Precinct stationhouse.

“She’s just trying to stop me from pursuing a sexual harassment case,” Karson said.

But Ono’s lawyer, Jonas Herbsman, released a statement saying the 6-foot, 180-pound Karson not only tried to extort the legendary Beatle’s widow, but “threatened physical harm.”

Karson, who earned $160,000 a year, allegedly told Ono that he had been surreptitiously recording her calls and taking secret photos of her for years.

Police sources said the recordings and a pajama photograph showed Karson had great access to her private life, but contained nothing scandalous.

“There was nothing sexual in the photo, just an intimate shot, as if to say – see, this is how close I was. A bluff for the money,” a police source said.

Karson allegedly startled Ono on Friday by shoving a two-page letter in her face, demanding, “Read this!”