Spanish military emergency personnel monitor the air quality around Mount Cambreveja on the island of La Palma on November 30.
The volcano erupted for the 72nd day, and lava from the volcano destroyed more homes on November 30.
Volcanic island emergency planning officials say the concentration of toxic gases in the atmosphere remains high.
Local authorities on the island said: “The lava has covered 2,780 acres, equivalent to 1,115 hectares of land, and destroyed nearly 2,700 buildings. “Thousands of people have been evacuated from their homes on the island.”
Experts say the volcano, which erupted on September 19, is still active and has shown no signs of abating.