Jackson's doctor

LOS ANGELES, Feb. 3 (UPI) -- The doctor who was treating Michael Jackson when the pop singer died may soon surrender to authorities and face charges related to the death.

Dr. Conrad Murray traveled to Los Angeles expecting be to charged, the spokeswoman for his attorneys told CNN. She said the charges could be announced by the end of the week.

Some media reports said the doctor would be charged with involuntary manslaughter.

Murray legal team member Ed Chernoff told the Los Angeles Times it has been "made clear" Murray would surrender if charges are filed.

Jackson, 50, died June 25 due to "acute propofol intoxication" used along with sedatives. Murray admitted to giving Jackson propofol, an anesthetic, prior to the singer's death, which has been ruled a homicide.

Jackson was apparently having trouble sleeping as he prepared for a series of concerts set to begin in July in London and sought medication to help with insomnia