Spanish Army soldiers stand on a hill as lava flows as volcano continues to erupt on the Canary island of La Palma, Spain, Monday, Nov. 29, 2021.

Video. La Palma: Authorities urge people to wear masks due to toxic gas

High concentration levels of sulphur dioxide from the volcanic gas emissions prompted authorities to suspend workers' access to the southern zone and urged the population to wear masks and avoid outdoor activities on Monday.

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