Sen. Lindsey Graham Lindsey Olin GrahamSenate Republicans signal openness to working with Biden Loeffler calls for hearing in wake of Netflix's 'Cuties' Quinnipiac poll shows Graham, Harrison tied in South Carolina Senate race MORE (R-S.C.) said on Monday that he warned President Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE against targeting Iranian cultural sites — a step the president has repeatedly threatened if Iran retaliates over the death of a top general killed in a U.S. strike.

“I talked to him today. I said we’re not at war with the culture of the Iranian people. ... Cultural sites, religious sites are not lawful targets,” Graham said.

“Putting cultural sites on the table as a military target, I think, undercuts what we're trying to do,” Graham added, recounting his conversation with Trump.

ADVERTISEMENT

The White House didn’t immediately respond to a request for comment about the conversation.

The talk came a day after Trump doubled down on his threat to target Iranian cultural heritage sites, asserting to a group of reporters that the U.S. had the right to strike them.

"They're allowed to torture and maim our people. They're allowed to use roadside bombs and blow up our people. And we're not allowed to touch their cultural sites? It doesn't work that way," Trump told reporters on Sunday.

In separate tweets on Saturday, Trump threatened to attack sites "at a very high level & important to Iran & the Iranian culture" should Iranian-backed forces strike U.S. civilians or military targets in the Middle East in retaliation for the death of Gen. Qassem Soleimani, the head of Iran's Quds Force.

"Iran has been nothing but problems for many years," Trump tweeted on Saturday. "Let this serve as a WARNING that if Iran strikes any Americans, or American assets, we have targeted 52 Iranian sites... some at a very high level & important to Iran & the Iranian culture, and those targets, and Iran itself, WILL BE HIT VERY FAST AND VERY HARD. The USA wants no more threats!"

The threat has sparked backlash from top Iranian officials, who warned it would violate international law.

"Having committed grave breaches of int'l law in Friday's cowardly assassinations, @realdonaldtrump threatens to commit again new breaches of JUS COGENS," Iranian Foreign Minister Mohammad Javad Zarif tweeted. "Targeting cultural sites is a WAR CRIME."