Multiple missiles were fired Saturday at three US warships in the Red Sea, though none was hit and there were no casualties, the US military said amid rising tensions with Yemen's Huthi rebels.

A US defense official said the altercation took place starting around 1930 GMT. It was unclear how many of the surface-to-surface missiles were fired at the USS Mason, USS Nitze and USS Ponce.

The USS Mason, which was sailing in international waters off Yemen's coast earlier this week, used unspecified countermeasures against the incoming missiles, the official said.