Saudi Arabia has offered the Houthis $1 billion to stop attacks on the kingdom, Israeli media reports citing diplomatic sources in the Persian Gulf, reports say the offer was made in negotiations mediated by Iran. Saudi Defense Minister Khaled bin Salman made an unexpected visit to Tehran with the aim of reaching a ceasefire, and the money will be transferred to the movement through Iran if an agreement is reached. One diplomatic source claimed the sum was flown to Tehran on a Hercules military transport plane, but a Saudi official would not confirm the transfer.