BREWER, Maine — A methamphetamine lab was discovered inside a Brewer motel room on Thursday morning, according to Maine Department of Public Safety spokesman Stephen McCausland.

The cleaning staff at Vacationland Inn on Wilson Street made the discovery in one of the rooms and the Maine Drug Enforcement Agency confirmed it was an active meth lab, McCausland said.

He said that the woman who had rented the room was arrested earlier by Brewer police on an unrelated charge and that the MDEA is expected to charge her in connection with the meth lab.

The woman’s name was not immediately available. She is being held at the Penobscot County Jail.

The motel’s guests, who were evacuated Thursday afternoon, were expected to be able to return Thursday evening, McCausland said.

This is the 38th time this year that the Maine Drug Enforcement Agency has been called to deal with a meth-related incident, McCausland said Thursday in a news release.

In September 2014, producers and staff with reality TV show “Hotel Impossible” visited the Vacationland Inn and conducted whirlwind renovations and training.

The show, hosted by famed hotelier Anthony Melchiorri, takes hotel properties from all over the world and renovates parts of them, teaming with local contractors to offer a fresh new look to certain rooms, conference spaces, lounges, bars or other important parts of a hotel.

BDN writer Emily Burnham contributed to this report.