Forty people were injured after a section of floor at a packed nightclub on Spainâ??s holiday island of Tenerife collapsed Sunday, sending revellers plunging into the basement, officials said. Rescuers rushed to the Butterfly Disco Club in Adeje at about 2:30 am (0230 GMT) after a roughly four square metres (43 square feet) of its floor gave way. The injured included two French men aged 38 and 40, two British men aged 57 and 59, ...