This is unchartered territory for us, and I imagine about everybody else, Pristera said.

A lawyer for the nursing home declined to comment. Auditor's records show the home was built in 1950 and had 31 rooms. Pristera said 39 names were on its roster.

Methamphetamine is a highly addictive illegal stimulant often cooked in homes with flammable components. State officials say more than 300 meth labs were broken up last year.

The Associated Press contributed to this report.