“The letter was not meant as a threat,” said John Kirby, the White House national security communications advisor. “We have to follow the law of the land here.”

“We’re working on a joint statement,” the US president said. “There’s going to be some sanctions imposed on Iran.”

“Out of an abundance of caution, we are sending a small number of additional U.S. military personnel forward to augment our forces that are already in the region,” the Pentagon said.

Hamas’s execution of six hostages has “called into question Hamas’s readiness to do a deal of any kind,” the senior official said.

“The charges unsealed today are just one part of our effort to target every aspect of Hamas’s operations,” Merrick Garland said. “These actions will not be our last.”

“The ongoing reckless statements and actions of this minister only sow chaos and exacerbate tensions,” Foggy Bottom spokesman Matthew Miller said.

Hamas has yet to respond to Israel’s proposed deal, according to the Israeli prime minister’s office.

“Your administration must stop accommodating Iran and its terrorist allies now,” the 48 senators wrote.

The Hamas political bureau chief was one of the terrorist group’s most senior leaders alongside Yahya Sinwar, the architect of the Oct. 7 massacre.

“Nobody wants a broader war, and I’m confident that we’ll be able to avoid such an outcome,” White House adviser John Kirby told reporters Monday.