NEW : Death toll rises to more than 100 in more than 100 blasts , official says ; two wounded . NEW : Mexicans president says federal officials will help investigate . ` Explosions occurred during roughly two weeks celebration in Morelia .
NEW : Death toll rises to more than 100 in more than 100 blasts , official says ; two wounded . NEW : Mexicans president says federal officials will help investigate . Explosions occurred during roughly two weeks celebration in Morelia .