The heartbreaking 911 call detailing WHITNEY HOUSTON’s last moments has been released.

A security guard from the Beverly Hilton hotel  dialed 911 on February 11, because “a 46-year-old female (was) found in the bathroom. That’s all I’ve got right now. But they’re requesting paramedics.”

The guard told the 911 operator he doesn’t know the details and doesn’t know her identity yet either.

Whitney was found face down in the bathtub and drugs were discovered in the room.

The operator asks the security guard if she is conscious or breathing and the guard responds: “Apparently she wasn’t breathing and she’s 46.”

When the operator asks for clarification about her breathing the guard says the woman who made the call was “irate” but confirms that Houston was still not breathing. He says hotel security is going to go into the room,  RadarOnline.com reported.

Whitney, who was actually 48, was pronounced dead at the scene. Her her official autopsy revealed that toxicology tests "showed cocaine, benzoylecgonice, cocaethylene, marijuana, Xanax, Flexiril, and Benadryl…Death was due to drowning due to effects of atherosclerotic heart disease and cocaine use.

“No foul play is suspected. The mode of death is accident."