Two missiles fired from rebel-held territory in Yemen landed near a U.S. warship in the Red Sea, the U.S. Navy said Monday.

Ian McConnaughey, a spokesman for U.S. Navy Forces Central Command, said it was unclear if the USS Mason — a guided missile destroyer — was specifically targeted, but the missiles were fired in its direction in the space of an hour from 7 p.m. local time Sunday.

The Navy said that no American sailors were injured and the warship was not damaged. Pentagon press secretary Peter Cook said the missiles appeared to have been fired from territory in southern Yemen controlled by Iran-backed Shiite rebels known as Houthis, the Wall Street Journal reported.

The incident happened in international waters north of the Bab el-Mandeb Strait in the southern Red Sea, according to the WSJ.

The launches came as a ballistic missile fired from Yemen targeted an air base near the Muslim holy city of Mecca in Saudi Arabia, local media reported, in apparently the deepest strike into Saudi territory by Houthis and their allies.

The incidents follow a Saudi airstrike on a funeral hall in the Yemeni capital Sanaa on Saturday that killed more than 140 people. The Saudi government said Sunday that it would investigate, with assistance from U.S. experts.