UPDATE: The 911 call was reportedly placed at 6:35AM,

Charlie’s parents, Janet Templeton and Martin Sheen are at the hospital, along with Sheen’s ex-wife, Denise Richards. From TMZ:

“Neighbors tell [us] Charlie threw some sort of party last night. They heard women inside Charlie’s house singing Red Hot Chili Peppers songs throughout the evening. The party went on — loudly — well into the wee hours.“

An even more recent update from TMZ indicates that Sheen was haning with porn star Kacey Jordan earlier this week, and that the actor was still partying when she left Wednesday afternoon.

(The Wrap)