"If Iran wants to be part of a constructive resolution to Syria, constructive resolution to Yemen, it can be so,” Kerry said. “I know from our conversation here this morning with Sheikh Khalid that he would welcome, as would other Gulf state members would welcome, Iran to the table if they want to be part of a genuine security arrangement for the region."
Tehran is an ally of Syrian President Bashar Assad, and is believed to be backing Houthis in Yemen.
“It is not constructive to be sending dhows across the Gulf loaded with weapons that are only going to add fuel to the fire of a war we are busy trying to end,” Kerry added. “And we would invite Iran to be part of helping to end the war on a constructive basis, not to fuel it into greater conflict.”
Yemen has been engulfed in a military conflict between the government of Abd Rabbuh Mansur Hadi and Shiite Houthi rebels, who have been backed by army units loyal to former President Ali Abdullah Saleh. Since March 2015, a Saudi-led coalition of Sunni nations has been carrying out airstrikes against the Houthis at Hadi's request.