War with Iran would be the "mother of all wars," Iranian President Hassan Rouhani has said in a live TV address. The US must lift all sanctions if it wants to negotiate with Tehran, he warned.

Axar.az reports citing DW that Iranian President Hassan Rouhani demanded an end to US sanctions, declaring it was necessary for talks to continue.

In a speech broadcast on state TV Tuesday, Rouhani said that Tehran favored "talks and negotiations," but that "the US should lift all sanctions first."

The Iranian government was ready to talk regardless of the US stance on a nuclear deal, Rouhani added. "Whether they want to come into the JCPOA or not, it's up to them," he said.

The US left the landmark deal in 2018, which had set limits on Iranian nuclear developments, in exchange for an end to economic sanctions on Iran. The US also began to reimpose sanctions on Iran.