Police have confirmed a drug lab is now being dismantled at a house in West Vancouver, but no arrests have been made.
 
A search warrant was executed Tuesday afternoon at the home in the 5500 block of Greenleaf Road where fire broke out Monday.
 
It's believed the hazardous materials involved the production of crystal methamphetamine at what's being called a medium-sized lab.
 
Several surrounding homes had to be evacuated.
 
Residents were allowed to go home last night.