At least 10 people died and others were injured in a blaze at a nursing home near Zaragoza, Spain, before firefighters managed to extinguish the flames, local authorities said Friday.

The alarm was raised early Friday morning in Villafranca de Ebro, about 28 kilometres from the northeastern city. Two people remained in critical condition, officials said.

The cause of the fire was not yet known, local media reported.

Local media said 82 people had been living in the nursing home, which focused on treating people with dementia and mental health issues.

Volga Ramirez, mayor of Villafranca de Ebro, told reporters outside the centre on Friday morning that intense smoke from the blaze was likely responsible for the deaths.

“It is due to smoke inhalation,” Ramirez said, “not because they were burned.”

Jorge Azcon, head of the regional government of Aragon, which includes Villafranca de Ebro, confirmed the deaths and said on X, formerly Twitter, that all government events in the region were cancelled for the day.

Spanish Prime Minister Pedro Sanchez also expressed his shock.

The fire took place just weeks after devastating flash floods in the Spanish region of Valencia killed more than 200 people and destroyed thousands of homes.

The floods were the worst natural disaster in Spain's recent history.