Ronan Farrow responded to NBC News chair Andy Lack’s defense of how the network handled the Harvey Weinstein investigation, by disputing some of the Lack’s claims.

“I’ve avoided commenting on the specifics of NBC’s role in the Weinstein story to keep the focus on the women and their allegations. But executives there have now produced a memo that contains numerous false or misleading statements,” Farrow said in a tweet posted late Monday night.

Lack sent a memo to employees at NBC News on Monday to dispute allegations that the news network hindered or put a stop to the reporting Farrow was doing for the network on Weinstein, which eventually ended with Farrow taking his story to The New Yorker. The magazine published his bombshell report, which was one of a series of articles on Weinstein that won a Pulitzer Prize in public service for The New Yorker. The magazine shared the award with The New York Times.

In the memo, Lack wrote that the Comcast-owned CMCSA, -1.79% network “spent eight months pursuing the story but at the end of that time, NBC News—like many others before us—still did not have a single victim or witness willing to go on the record. (Rose McGowan -- the only woman Farrow interviewed who was willing to be identified—had refused to name Weinstein and then her lawyer sent a cease-and-desist letter.)”

As a result, the network “had nothing yet fit to broadcast,” he said. He added that Farrow did not agree with NBC’s standard and “that’s where we parted ways — agreeing to his request to take his reporting to a print outlet that he said was ready to move forward immediately.”

Lack also said that none of the women mentioned in The New Yorker story by name were included in the reporting Farrow presented while at NBC news.

But according to Farrow’s tweet, NBC’s “list of sources is incomplete and omits women who were either identified in the NBC story or offered to be.”

Farrow also disputed Lack’s claim that the network agreed to a request to take the story elsewhere. “The suggestion to take the story to another outlet was first raised by NBC, not me, and I took them up on it only after it became clear that I was being blocked from further reporting,” he wrote.

Farrow said his story was “twice cleared and deemed ‘reportable’ by legal and standards only to be blocked by executives who refused to allow us to seek comment from Harvey Weinstein.”

The Pulitzer-winning journalist praised NBC’s “talented, dedicated journalists, many of whom have reached out to me in frustration,” and hinted at more to come.

“They are owed an honest accounting of what happened,” he said. “There’ll be more to say at the right time.”

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Rich McHugh, a producer who worked closely with Farrow and recently left his position in NBC News’ investigative unit, accused the network of trying to kill the Weinstein story in a report published by the New York Times last week. He told the Times that NBC News was “resistant” throughout the eight-month reporting process.

“Three days before Ronan and I were going to head to L.A. to interview a woman with a credible rape allegation against Harvey Weinstein, I was ordered to stop, not to interview this woman,” McHugh told the Times. “And to stand down on the story altogether.”

He responded to Lack’s memo in a Monday evening tweet.

“I’m not clear how NBC’s report can be considered objective and thorough given I was never interviewed for the report and only learned about it when asked for comment by reporters late last week,” McHugh wrote.

“When you have an exclusive audio recording of Harvey Weinstein admitting to sexual assault, in addition to a rape survivor scheduled for an interview in three days, what journalistic ‘ethic’ would cause a news outlet to cancel that interview, not air the audio tape, and let one of the most defining stories of this decade walk out the door?” he wrote.