Fentanyl not involved in Cory Monteith's death: coroner

In this April 12, 2010 file photo, Cory Monteith arrives at the "Glee" Spring Premiere Soiree in Los Angeles.(AP / Chris Pizzello, File)

VICTORIA -- British Columbia's coroner says there was no indication that the drug fentanyl was involved in the death of "Glee" actor Cory Monteith.

The BC Coroners Service issued the statement today, reiterating that Monteith died of a toxic mix of heroin and alcohol.

The clarification came out after Abbotsford, B.C., police issued a warning about recent drug overdoses involving heroin in that Fraser Valley community.

Constable Ian MacDonald says police started monitoring the problem in May, after B.C.'s medical health officer issued a warning about fentanyl being sold to regular heroin users.

Police logged eight overdoses since then, including one death.

Police say when Monteith's body was found Saturday in his Vancouver hotel room he had been dead for several hours.