A day after a fire roared through a high-rise apartment complex in the Spanish city of Valencia, killing at least 10 people, police investigators were trying to determine why the flames had engulfed the two buildings in less than an hour. Luis Sendra, the dean of the Official College of Architects of the Community of Valencia, said that investigators would have to wait until the structures cooled down to be able to determine whether exterior cladding might have helped fuel the fire. He said that gaps between the insulation and the cladding could have facilitated the spread of flames. “It’s too early to know the exact cause,” Mr. Sendra said. “But the speed with which it spread would indicate similarities with Grenfell Tower in London.”

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Persons: Luis Sendra, “ It’s, Mr, Sendra, ” Organizations: Official College of Architects, Community of Locations: Spanish, Valencia, Community of Valencia, London