Coroner: Autopsy on Whitney Houston completed

The Los Angeles County Coroner's Office completed its autopsy of Whitney Houston on Sunday, and Assistant Chief Coroner Ed Winter said the results won't be released for 6 to 8 weeks as they await the completion of the toxicology report.

Houston's body arrived at the Los Angeles County Coroner's Office in the Boyle Heights area of LA 11 hours after she was declared dead at the Beverly Hilton Hotel, reports CBS2 in Los Angeles.

The pop superstar was pronounced dead 3:55 p.m. Saturday in her fourth-floor room at the Beverly Hilton Hotel.

Kirk Hawkins, reporting for CBS2 and KCAL9, said paramedics performed CPR for 20 minutes prior to that after they were called by a member of Houston's entourage.

Special section, Whitney Houston: Death of a pop diva

Houston was found unresponsive in a bathtub in her fourth floor hotel room.

Speaking at a press conference on sunday, Winter with the L.A. Coroner's Office said there's a security hold on the case so there will be no additional information as far as what was discovered in the room, or any details of that nature, until the ongoing investigation into her death is concluded.

Winter confirmed earlier reports and said Houston was found in the bathtub, and that she was likely removed from the bathtub and that paramedics performed CPR. There were no signs of trauma and foul play is not suspected.

Winter did not answer questions about whether or not drugs were found in the room.

The L.A. Coroner's Office will likely not be providing further updates until the end of the week, Winter said.