Crews were set to resume the search today for Rivera's remains amid the wreckage of a plane that crashed in the remote, mountainous area in northern Mexico on Sunday.
"The plane was totally destroyed. ... It is a great tragedy," her brother, Gustavo Rivera, told CNN en Espanol.
Six others were killed, including the singer's publicist, lawyer and makeup artists, he said. Family members were planning to travel to Mexico today as investigators work to determine what caused the crash.