Authorities in Ohio were stunned to discover a fire at a nursing home that killed 1 and injured six Sunday night started in a drug lab inside the home, Fox8 reports.

Ashtabula Fire Chief Ron Pristera said a man died Monday, following the Sunday night fire at Park Haven Nursing Home. 

Pristera said the man was among three residents and two non-residents hospitalized. Two other people were treated at the scene.

Officials said they were stunned when they began investigating the cause of the fire and discovered a secret methamphetamine lab in one of the rooms at the nursing home. 

When we first started to get the indications, we all sort of looked at each other and went, You know, are we seeing what we think were seeing?" said Pristera.

Police Chief Robert Stell told The (Ashtabula) Star-Beacon that drug charges are pending against two of the men who were burned. He declined to release their names until they have been charged and arraigned in municipal court.