Whitney Houston
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Whitney Houston's official cause of death was due to accidental drowning, a source close to the investigation tells PEOPLE.The singer, 48, was also found to have cocaine in her system at the time of her death, the source confirms. Contributing factors of her death included heart disease and cocaine use, an investigation found.
The Los Angeles County coroner's office confirmed the news Thursday after PEOPLE reported the findings.
Houston was found unresponsive and underwater in a bathtub at the Beverly Hilton Hotel on Feb. 11, a day before the Grammy Awards, and was pronounced dead at the scene soon afterward.
Coroner officials previously confirmed that prescription pill bottles were found in her room, but the number of pills were "not in alarming amounts."
Houston, who had long battled drug addiction, was laid to rest on Feb. 19 at the Fairview Cemetery in Westfield, N.J., alongside her father, following a star-studded memorial the day before.