Award-winning R&B legend Whitney Houston died from accidental drowning, the Los Angeles Coroner's Office announced late Thursday.

Officials from the coroner's office also said heart disease and cocaine use were contributing factors.

According to the report, the drug and its byproducts were found in her system and there were signs of recent and chronic use.

The songstress drowned in the bathtub of her Beverly Hilton Hotel room Feb. 11. She had been scheduled to perform the following day at the Grammy Awards.

"We are saddened to learn of the toxicology results, although we are glad to now have closure,' said Patricia Houston, the singer's sister-in-law and manager.

Houston was laid to rest next to her father Feb. 19 in private ceremony in Newark, N.J.