The Washington Post editorial board on Saturday tore into Saudi Arabia's explanation for the death of dissident journalist Jamal Khashoggi, calling it a "fable."

The newspaper's latest editorial also slammed President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE for stating Friday that he found it credible that the journalist died after a fight broke out after he entered the Saudi consulate.

"That President Trump would pronounce this fable credible only underlines his shameful intent to assist in the attempt of the regime — and, in particular, the crown prince — to escape meaningful accountability," the newspaper's editorial board wrote, adding that the story of Khashoggi's death offered by Saudi officials was "utterly devoid of credibility."

"As Mr. Trump surely knows, the new Saudi cover story is contradicted not just by evidence collected by Turkish authorities and by journalists but also by the reporting of the U.S. intelligence community," the Post's editors continued.

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"All point to Mohammed bin Salman as the instigator of a premeditated, cold-blooded and brutal murder, followed by the dismemberment of Mr. Khashoggi’s body," they added, referring to the Saudi crown prince.

Khashoggi, who served as an opinion contributor for the newspaper, was last seen entering the Saudi consulate in Istanbul on Oct. 2. The Saudi government had claimed that they didn't know where he was, before acknowledging Friday that he had died inside the consulate.

Trump on Friday lauded Saudi Arabia's initial arrests of more than a dozen Saudi nationals as a "good first step" by the Kingdom in responding to the investigation.

"It's a big step. There's a lot of people involved," Trump told reporters, adding when pressed that he found the Saudi explanation for Khashoggi's death to be credible.

Other Republicans, including Sen. Lindsey Graham Lindsey Olin GrahamSteele Dossier sub-source was subject of FBI counterintelligence probe Hillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Key Democrat opposes GOP Section 230 subpoena for Facebook, Twitter, Google MORE (R-S.C.), torched the Saudi government's official explanation, saying it was not credible.

“To say that I am skeptical of the new Saudi narrative about Mr. [Jamal] Khashoggi is an understatement,” Graham wrote Friday in a string of tweets.

“First we were told Mr. Khashoggi supposedly left the consulate and there was blanket denial of any Saudi involvement. Now, a fight breaks out and he’s killed in the consulate, all without knowledge of Crown Prince,” he added, referring to the Saudi government's evolving explanations for the incident.

The disappearance and death of Khashoggi has sparked international uproar and ensnared the Trump administration, which has put a close relationship with Riyadh at the center of its foreign policy strategy.

Finance ministers from the U.S. and several other countries have withdrawn from a planned conference in Riyadh later this month over the journalist's fate, though it is unclear what response the U.S. may have for his death.