Julia happening now..
We are tracking the latest developments in a mass overdose incident in chico.
It killed one person and hospitalized more than a dozen others... including police officers.
Boxes action news now's hayley watts is live outside the chico fire department... with their account of what happened, hayley what can you tell us?
Reporter live julia, both chico police and witnesses have said the synthetic opioid fentanyl is to likely to blame.
But today, police will release the lab's official findings on what this drug was.
Vo right now - enloe medical center says seven of the 14 patients have been upgraded "good condition"... while two have been released.
We are working to learn the condition of one person admitted to oroville hospital... and of course, the identity of the person killed.
I have been bringign you the details of this case since saturday morning... when a large number of chico's first responders inlcuding every single e-m-t unit in the city -- lept into action to save lives at a home "santana court" there - chico fire administered seven doses of narcan... it happened to be the first time the department ever used when i talked to division chief jesse alexander..
He told me he'd never seen anything like this.
Sot full for single-family residence to get this many individuals especially all at one time to walk in and that's a pretty big deal and no i have not experienced that many cardiac events all at the same time.
Vo two police officers were also hospitalized when they started to feel sick... but they were released.
Right now - polcie chief mike o'brien sys all signs point to some sort of poisoning from fentanyl... which is an opioid often mixed with heroin or cocaine.
Chico police were treating the house like a hazmat zone - but they emphasize there is no risk to neighbors.
Now, many friends and family are still waiting to hear about the conditon of their loved ones.
And police have said all the victims are between 19 to 30 reporter live coming up in out next half hour - we will hear from the mother of one of the young men hospitalized.