Two missiles launched from rebel territory in Yemen on Sunday landed near an American destroyer ship passing by in the Red Sea, the U.S. Navy said on Monday.
Yemen's Shiite rebels, known as the Houthis, did not offer a reason for the launch. The launch does come after a Saudi-led airstrike on a funeral in Yemen's capital, Sana'a, which killed 140 people on Saturday.
The Navy said no sailors were injured, and the USS Mason was not damaged.
An American official said the USS Mason deployed defensive measures, but it's not clear if that was what caused the missiles to fall into the sea. Navy spokesman Lt. Ian McConnaughey said it wasn't clear if the ship was specifically targeted by the missiles, which arrived over a 60-minute period.
Iran supports the Houthis (pictured). Any Iranian involvement in this launch could increase tension with the U.S.
Reactions on social media quickly turned to the presidential debate.
An Israeli official saw the attack as a grave warning.
The Associated Press contributed to this report.