WATCH: Psaki grilled over Biden State Dept's unsubstantiated Russian 'false flag' claims

On Thursday, State Department spokesperson Ned Price addressed a reporter's questions about the Biden administration's allegations that Russia is intending to stage a "false flag" attack as a means to enact plans to invade Ukraine. That contentious exchange about the State Department's claim that Russia would be creating a propagandist film as a means to gin up an excuse to invade Ukraine was the subject of further questioning during Friday's White House briefing.

"Do you really believe that journalists are repeating Russian and Islamic State propaganda in pursuing those questions? Will you be offering evidence of your claims with respect to what happened in Syria when they become available?" White House Press Secretary Jen Psaki was asked.

In response, Psaki said she is happy to come out and answer "tough questions and good faith scrutiny." She noted that the Defense Department is "less than 48 hours from the end of the mission" and they are "conduction after-action assessments."

Additionally, Psaki said, not addressing the reporter's question, the Department of Defense has been "directed" by the President "to take every precaution to minimize civilian casualties."

As to the evidence that Thursday's reporter demanded from Price to back up the Biden administration's assertion that Russia is intending to stage this "false flag" operation, Psaki said "we have released all the information we could and we absolutely remained committed to that to answer the other part of your question."

However, as revealed by an AP reporter on Thursday, the DOD did not actually release any information, they just said things.

On Thursday, Price detailed potential "false flag" operations that would include using corpses, footage of bomb-destroyed buildings, Ukrainian military hardware, Turkish-made drones and fake Russian-speaking mourners.

In so doing, Price referenced an intelligence report from December that suggested Russia was trying to come up with a reason to invade Ukraine. Price claimed that this US intelligence report suggested that a Russian, propagandist, "false flag" operation would be conducted for this purpose.

"You made an allegation that they might do that," the AP reporter asked Price, "have they actually done it?"

Price referenced reports from the State Department that reflected what he said, but did not supply any actual evidence. When the reporter pressed, Price referred him to the remarks he had just made at the briefing.

"I would like to see some proof that you can show," the AP reporter said, refusing to take Price's word for it. He went on to point out that there wasn't "any evidence" to back up Price's assertions.

He asked again, "Then this is unprovable! What is the evidence that you have that suggests the Russians are even planning this? I'm not saying that they're not. But you just come and say this and expect us to just leave without you showing a shred of evidence that is actually true. Other than when I asked, or when anyone else asked, 'what's the information,' and you said 'well, I just gave it to you,' which was just you making a statement."

Price took the opportunity to suggest that the AP reporter's questions were themselves due to his having believed propaganda from foreign governments. "If you doubt if you doubt the credibility of US government of the British government, of other governments and want to, you know, find solace and information that Russians are putting out that is, that is pretty easy to do."

Psaki did not give any additional information on Friday, nor did she answer the questions as to why Price would have suggested that the AP reporter on Thursday was taking "solace" in false information, nor did she provide the requested evidence.