MEXICO CITY (AP) — A small plane carrying Mexican-American singer Jenni Rivera went missing early Sunday after taking off from the city of Monterrey, authorities in northern Mexico confirmed Sunday.

Jorge Domene, spokesman for the Nuevo Leon state government, told Milenio television that the plane left Monterrey about 3:30 a.m. local time after a concert there and aviation authorities lost contact with the craft about 10 minutes later. It had been scheduled to arrive in Toluca, which is located outside Mexico City, about an hour later.

Domene said a search for the plane is under way with civilian protection agency helicopters flying over the state. He said seven people including her publicist, lawyer, makeup artist and the flight crew were believed to be aboard the U.S.-registered Learjet 25, the ministry of transportation and communication said in a statement.

Alejandro Argudin, of Mexico's civil aviation agency, said Sunday afternoon that Rivera's plane was still listed as missing not crashed.

The 43-year-old who was born and raised in Long Beach, California, is one of the biggest stars of the Mexican regional music known as grupero music, which is influenced by the norteno, cumbia and ranchera styles.

The so-called Diva of the Banda recently won two Billboard Mexican Music Awards: Female Artist of the Year and Banda Album of the Year for "Joyas prestadas: Banda." Her famous songs include "La Gran Senora" and "De Contrabando."

The singer, businesswoman and actress appeared in the movie Filly Brown, as the incarcerated mother of Filly Brown, and has her own reality shows including "I Love Jenni" and "Jenni Rivera Presents: Chiquis and Raq-C" and her daughter's "Chiquis 'n Control."