Investigators uncovered a meth lab following an explosion in Carbon County on Sunday night.
Firefighters dispatched for the explosion on East Patterson Street in Lansford about 10 p.m. found themselves in a highly toxic environment, WNEP-TV reports.
Two men and one woman face methamphetamine-related charges.
Pennsylvania state police were expected to go through the home Monday. Authorities were also investigating another suspected drug-making lab about a block and a half away from the explosion, according to the WNEP report.