EFESanta Cruz de La Palma, Spain

The eruption of the volcano on the Spanish island of La Palma entered its most explosive phase so far overnight Saturday, forcing the airport to close due to ash accumulation.

"La Palma airport is inoperative due to ash accumulation. Cleaning tasks have started, but the situation may change at any time,” Spanish airport operator Aena announced Saturday on Twitter.

“The priority is to ensure the safety of operations,” it added. EFE