CONCORD — A Pembroke woman has been sentenced to six years in prison for participating in a conspiracy to sell methamphetamine, federal prosecutors said.

Katie Jo Waters was sentenced in U.S. District Court in Concord after pleading guilty in July. Prosecutors said traffickers had mailed the drug to her home during the first half of 2018.

Authorities said postal inspectors seized police seized more than a pound of nearly pure methamphetamine as it was being mailed from Las Vegas to the Canterbury home of waters.

When New Hampshire State Police stopped her, a search of the car she was driving found 38 grams of the drug and a 9mm handgun.

Waters also was allegedly responsible for $18,700 in money transfers to her suppliers, prosecutors said.

“This dangerous drug presents a serious and growing threat to public health and safety,” U.S. Attorney Scott Murray said in a statement.