COBB COUNTY, Ga. -- Police shut down a mile-long stretch of a busy Cobb County road Tuesday morning after stopping what they called a "rolling meth lab."

Cobb County police said an officer stopped a pick-up truck on Brownsville Road near McEachern Way in Powder Springs around 3:40 a.m. for a traffic violation. Two men and a woman were in the truck. The officer patted the woman down after she acted suspiciously, said police.

“(They) found on her what he felt was methamphetamines and during that pat down, discovered those drugs and felt there were other things inside that truck,” said Sgt. Dana Pearce with the Cobb County Police Department.

CAROL SBARGE: Police: 'Rolling Meth Lab' Discovered In Cobb

Cobb investigators said they found various chemicals and components that could be used to make meth.

Police shut down Brownsville Road until about 9:30 a.m.

“It is very volatile. Probably it’s safe to say that people who are dealing with this, who are making this, don’t always take the necessary precautions because they’re trying to make this drug and get it out there as quickly as possible,” said Pearce.

Police took the three people into custody.

Check back on wsbtv.com for more on this developing story.