Iranian Foreign Minister Javad Zarif has called for a peace plan for war-torn Yemen that includes humanitarian aid, dialogue and the formation of a broad-based Yemeni government after a proposed cease-fire already rejected by Saudi Arabia.

Saudi Arabia has been carrying out airstrikes in Yemen against the Houthi rebels who control the capital, Sanaa.

Zarif in a visit to Madrid Tuesday did not address Saudi claims that Tehran has been giving the Houthis military support.

He says no preconditions as to who would run Yemen can be imposed before dialogue begins with the country's different factions, because doing so "will prolong the disaster."

Zarif also reiterated Iran's position that sanctions against his country must be removed when a final deal is reached on its nuclear program.