Iran live updates: Trump weighs strikes on Iranian energy sites, US officials say

President Donald Trump said that he is "losing faith" with Iran's negotiating team, though did not completely rule out the possibility of a deal that could end the war with Iran, during a cabinet meeting at Camp David on Friday.

Asked by a reporter whether reaching a deal with Iran is still possible, Trump said, "Yes, you can. I mean, I'm losing faith in them because they do lie and they do misrepresent."

Trump also continued to defend the ongoing U.S. war with Iran, waving off fears over the U.S.’s stockpile of munitions and saying that defense companies are working to ramp up production.

"Iran is doing very poorly, just in case you read incorrect stories, they're doing very, very poorly. They're having a hard time. They've been very dishonest. They've been very dishonorable to deal with," Trump said.

The U.S. Department of Defense's casualty database was updated Thursday to reflect 11 additional troops wounded in the war with Iran since Tuesday, bringing the total number of wounded to 653.

It's unclear how long casualty reports take to appear in the system; the additional 11 wounded service members were not necessarily injured within the past two days.

Eighteen troops have been killed in action.

-ABC News' Steven Beynon

Iranian Foreign Minister Abbas Araghchi denied any involvement in the incident in Egypt on Wednesday, urging vigilance against what he called "false flag" attacks.

"Egypt is considered a friend and important partner in the region, and its security constitutes an utmost priority for us. We must all remain vigilant toward Israeli schemes and "false flag" operations that aim to undermine regional peace. The threat is clear, shared, and fears Muslim solidarity," Araghchi said Thursday.

The Departments of State and Treasury announced new sanctions targeting several Chinese and Russian entities & others accused of supporting Mahan Air, an Iranian airline sometimes used by the IRGC to transport personnel and arms.

"The United States calls on the international community, particularly companies and individuals doing business with Mahan Air or any other sanctioned Iranian carrier, to recognize the serious risks raised by continuing such engagement,” State Department spokesperson Tommy Pigott said.

Thursday's move comes amid reports that China will soon send hundreds of anti-aircraft missiles to Iran -- claims Beijing has denied -- and as scrutiny of assistance provided to Iran’s war effort by China and Russia has intensified, despite repeated assertions from administration officials that the countries have not made significant contributions.

The sanctions also target an Iranian company said to support Tehran’s military by gathering intelligence on locations of American and Israeli equipment in the Middle East.

-ABC News' Shannon K. Kingston