Mexican-American singer Jenni Rivera is missing. The 43-year-old was aboard a private jet with six others that took off in Monterrey, Mexico in the early hours of Sunday, Dec. 9 -- with aviation authorities losing contact with the aircraft ten minutes after takeoff, the Associated Press reports.

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Rivera and her fellow passengers and crew were expected to land in the Mexican city of Toluca (near Mexico City) around 4:30 a.m. Sunday morning; a search, complete with helicopters, was launched in the area early Sunday.

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Born and raised in Long Beach, Calif. Rivera was in the northern city of Monterrey for a concert; she's popular for her renditions of regional Mexican music known as nortena and banda.

This article originally appeared on Jenni Rivera, Mexican-American Singer, Missing in Possible Plane Crash