Girl, 10, dies of suspected heart attack on plane at LAX, officials say

Update 11:10 a.m. Dec. 28: The Los Angeles County Coroner's Office identified the child as Janice Xu, of West Vancouver, Canada, according to KIRO7. Delta flight 2423 was headed to Seattle from Los Angeles but returned to Los Angeles International Airport, the television station reported.

Xu was pronounced dead at the scene.

Original report: KABC reported the girl, believed to be 10, was on Delta Flight 2423 from LAX to Seattle when an unspecified medical emergency occurred. The plane turned around while still over Southern California to return to LAX, but the child was pronounced dead by paramedics upon landing.

The Los Angeles Police Department will investigate the death, NBC4 reported.