President Trump on Wednesday told gulf leaders in Saudi Arabia that he wants to strike a nuclear deal with Iran, urging the kingdom to stop supporting proxy groups in order to do so.

“I want to make a deal with Iran. I want to do something if possible. But for that to happen, they must stop sponsoring terror, halt its bloody proxy wars and permanently and verifiably cease pursuit of nuclear weapons,” Trump said at a meeting of leaders from the Gulf Cooperation Council hosted by Crown Prince Mohammed bin Salman.

He added, “They cannot have a nuclear weapon.”

The president also continued blaming the Biden administration for “empowering Iran,” adding, “those days are over.”

Trump on Tuesday, in remarks at a U.S.-Saudi investment forum in Riyadh, offered an “olive branch” to Iran, taking a softer tone with the nation but that also came with a stern warning that if the country didn't comply, there would be punishment to follow.

“I want to make a deal with Iran. If I can make a deal with Iran I’ll be very happy,” Trump said on Tuesday. “We’re going to make your region and the world a safer place. But if Iran’s leadership rejects this olive branch and continues to attack their neighbors, then we will have no choice but to inflict massive, maximum pressure.”

Trump during his first term withdrew the U.S. from the Obama-era Iran nuclear deal, which had offered sanctions relief in exchange for limits on its nuclear program. The president has recently signaled he could be open to Iran having a civilian nuclear program, but has been adamant that Tehran cannot have a nuclear weapon.

The Biden administration had lifted some sanctions relief on Iran, which Trump blames for empowering Tehran.