Red Sea eruptions, off the coast of Yemen, they reported Tuesday, after they were spotted drones and missiles in two separate incidents, it was made known by a British shipping authority.

Two drones were spotted before two explosions occurred within 5 nautical miles of a ship, which was sailing 50 nautical miles west of Hodeidah on Yemen’s west coast, the UK Maritime Trade Operations (UKMTO) said.

In another incident, an explosion was heard and rockets were seen within 4 nautical miles from a ship 60 nautical miles from Hodeidah, according to principle. Another explosion was reported 0.5 nautical miles from the same ship, according to the same source.

It is currently unclear whether in the incidents involved the same ship, which the authority did not name. Details of the cargo or an indication of where the ship or ships were headed or from where they had sailed were also not given.

In both incidents the ship and crew are safeaccording to the same source.

British authorities have not said where the drones or missiles came from, and there is no immediate claim of responsibility.