The Los Angeles Police Department has launched a death investigation in the Brittany Murphy case, sources close to the situation told RadarOnline.com.
As of 1:15 pm PST detectives from the Hollywood division of LAPD were at the house in the Hollywood Hills where Murphy collapsed Sunday morning.
Paramedics were called by her husband Simon Monjack and the actress was transported to Cedars-Sinai Medical Center. A Cedars spokesperson said Murphy was pronounced dead at 10:04 am Sunday.
The Los Angeles coroner's office is also investigating the sudden death of the 32-year-old.