BAR HARBOR — The Maine Drug Enforcement Agency says a suspected methamphetamine lab has been discovered inside a home in Bar Harbor.

The MDEA lab team, along with Bar Harbor police and fire departments are at the scene, which is a house on Gilbert Farm Road. Three persons are in custody.

This is the third meth lab MDEA has responded to this year. During 2014, 28 meth labs were found by drug agents, along with another nine disposal sites, an all-time record for the state.