The United States is seeking "regime change" in Iran, President Hassan Rouhani said Sunday, adding that the current U.S. administration is the most hostile that the Islamic Republic has faced in its four decades.

Tensions have increased between Iran and America after U.S. President Donald Trump withdrew from a multilateral agreement on Iran's nuclear program in May.

"In the past 40 years there has not been a more spiteful team than the current U.S. government team toward Iran, Iranians and the Islamic Republic," Rouhani said in a speech broadcast on state TV.