Days before the U.S.-Iran memorandum of understanding is set to expire on Aug. 17, a senior Iranian official said the United States and Iran were not negotiating a ceasefire extension, citing U.S. violations of the deal, Reuters reported on Aug. 12. Meanwhile, an Aug. 11 attack by Yemen's Houthis against a Red Sea cargo ship resulted in six fatalities, marking the first fatal Houthi attack since the group announced a blockade on Saudi-linked shipping on July 20.