Police believe Anne Heche was on drugs before fiery crash

LOS ANGELES - Police said Thursday that they are investigating actor Anne Heche for driving under the influence of drugs after a fiery crash into a Los Angeles house that left her with critical injuries.

Detectives with a search warrant took a sample of Heche's blood and found narcotics in her system, police spokesman Jeff Lee said. But toxicology tests, which can take weeks to complete, must be performed to identify the drugs more clearly and to differentiate them from any medication she may have been given for treatment at the hospital, where she remained Thursday, six days after the crash.

A representative for Heche declined to comment on the investigation.

A spokeswoman said Tuesday that Heche was still in critical condition and had been in a coma since after the Aug. 5 accident, with burns that required surgery and lung injuries that required the use of a ventilator to breathe.