Smoke and ash spewed into the sky, as lava continued to flow from La Palma volcano after two newly opened cracks formed late this week.
Local media reported that the north side of the volcano collapsed Sunday night, prompting a faster lava flow.
Radio Cadena SER said the collapse had formed a new lava flow that threatened several nearby towns.
“We reported a clear increase in effusive activity in recent minutes,” the Canary Islands Institute of Volcanology, Involcan, said previously on Twitter.
The constant rain of fine ash has forced islanders to don masks and goggles, while thousands have left their homes.
This came hours after Prime Minister Pedro Sánchez said on Sunday night that Spain would help rebuild the island, adding that it was safe for residents. tourists visit it.
Authorities issued a lockdown order late Friday for Los Llanos de Aridane and El Paso, two of the worst-affected towns.
They lifted the orders Saturday while still advising people to stay indoors as much as possible.
Some 6,000 people left their homes in the region since the eruption began on Sept. 19 and are yet to return, while more than 800 buildings, including houses, churches and schools, have been destroyed.