Tehran, March 28 -- Iranian Foreign Minister Seyed Abbas Araghchi said Thursday that holding direct negotiations with the United States under maximum pressure and military threats from Washington is "meaningless."

He made the remarks in a phone call with British Foreign Secretary David Lammy. Araghchi, however, voiced Tehran's readiness to pursue a diplomatic approach to the nuclear issue.

Iran has responded through Oman to a letter sent by U.S. President Donald Trump seeking negotiations with Tehran on its nuclear program, Araghchi said.

Trump told Fox Business Network in early March that he had sent a letter to Iran's leadership proposing negotiations for a new nuclear deal.

The Iranian foreign minister said Thursday that the official...