In photos: Intense search-and-rescue effort underway

A 12-story residential building partially collapsed Thursday in the South Florida community of Surfside, killing at least one person and sparking an intense search-and-rescue effort. As of Thursday evening, nearly 100 people were still unaccounted for.A 12-story residential building partially collapsed Thursday in the South Florida community of Surfside, killing at least one person and sparking an intense search-and-rescue effort. As of Thursday evening, nearly 100 people were still unaccounted for.