Natchez — Three locals were arrested Monday night after they were allegedly discovered to be running a meth lab in Natchez.

Robert Mahony Jr., 40, 603 Oak St., was charged with seat belt violation, driving under suspension, two counts of manufacturing crystal methamphetamines, possession of methamphetamines and a precursor violation.

A precursor violation is when a person possesses two or more ingredients used in the manufacture of illegal controlled substances.

Lisa Knapp and James Luke McNeely, both of Monterey, were also arrested on charges of acting in concert with the manufacture of methamphetamines.

Metro Narcotics received a warrant for the search at Mahony’s residence after an officer noticed the strong smell of ether — a chemical used in the manufacture of meth — coming from Mahony’s vehicle during a traffic stop shortly after 5 p.m., Metro Narcotics Commander Cliff Cox said.

During the search, the Mississippi Clandestine Laboratory Team found three different batches — or “cooks” — of meth being manufactured, Cox said.

Among items reportedly seized were a firearm, precursor chemicals used in the manufacturing process and a bottle with the chemicals already mixed and ready to cook, Cox said.

The chemicals were handled and disposed by a hazardous materials team.

Because the Oak Street address Mahony allegedly used is within 1,500 feet of a school, church or playground, Mahony faces enhanced drug charges as required by state law.