Mojtaba Khamenei, son of Ali Khamenei, made Iran's supreme leader

Mojtaba Khamenei, son of Ali Khamenei, was selected as Iran's new supreme leader, Iran's Assembly of Experts announced on Sunday, reported Xinhua.

In a statement, the assembly confirmed Mojtaba Khamenei's election as the country's third supreme leader, citing "the decisive vote of the respected representatives" of the assembly.

"In today's extraordinary session, Ayatollah Seyyed Mojtaba Hosseini Khamenei ... is appointed and introduced as the third leader of the sacred system of the Islamic Republic of Iran," the statement said.

Mojtaba Khamenei, born in 1969, is the son of Iran's late Supreme Leader Ali Khamenei, who was killed in the joint U.S.-Israeli strikes.

Meanwhile, U.S. President Donald Trump threatened on Sunday that Iran's new supreme leader "is not going to last long" without his approval.

"He's going to have to get approval from us," Trump said in an interview with ABC News. "If he doesn't get approval from us he's not going to last long."

"I don't want people to have to go back in five years and have to do the same thing again or worse let them have a nuclear weapon," he said.

Trump said earlier that he must be personally involved in selecting Iran's next leader.

On Feb. 28, Israel and the United States launched joint attacks on Tehran and several other Iranian cities, killing Iranian Supreme Leader Ayatollah Ali Khamenei, dozens of senior officials and military commanders, as well as hundreds of civilians.