A vessel has been attacked by two missiles off the coast of Yemen in the Red Sea, the United Kingdom Maritime Trade Operations (UKMTO) office reports.

It’s unclear if the missiles struck the ship but the crew were unharmed and the vessel is continuing to its next port of call, the UKMTO said.

The Yemen-based Houthi group have been attacking vessels in the Red Sea and Gulf of Aden since November in protest of Israel’s invasions of Gaza, according to Al Jazeera.