Five crewmembers were killed and three injured during a safety drill when a lifeboat from a cruise ship fell upside down into the sea earlier this month. The British-operated vessel was in port when the accident occurred, with about 1,400 passengers onboard.

When emergency crews arrived on the scene, the small lifeboat could be seen capsized alongside the cruise ship Thomson Majesty.

Investigators were still trying to determine the cause of the accident on the ship, which had been due to set sail for from Spain’s Canary Islands to the Portuguese mid-Atlantic island Madeira.