NEW : Shortly before the show , police warned the audience of severe damage . At least 24 people are injured , and some say the death toll will rise . ` ` We are all right . ` We are praying for our fans , '' tweets Madonna . A witness says he saw some people trapped .
NEW : Shortly before the show , police warned the audience of severe damage . At least 24 people are injured , and some say the death toll will rise . ` ` We are all right . We are praying for our fans , '' tweets Madonna . A witness says he saw some people trapped .