AZTEC — A smoke shop in Aztec was robbed Tuesday night.

The San Juan Sheriff's Office said it is the third robbery at a smoke shop in the last month. It is not clear if the robberies are related.

At about 9 p.m. on Tuesday, a heavy-set man dressed in dark clothing entered Rollet Smoke Shop, 1010 N.M. Highway 516 in Aztec.

He showed a firearm, demanded cash and fled the business with an undisclosed amount of money, said sheriff's office spokeswoman Beth Utley in a news release.

Rollet Smoke Shop, which sells smoking accessories, was also robbed March 28. Still Smoking, 5527 U.S. Highway 64 in Farmington, was robbed on April 10.

No one has been injured in the robberies.

Anyone with information is asked to call Detective Tim Nyce at 505-334-6197 or Crime Stoppers at 505-334-TIPS (8477), which allows tipsters to remain anonymous and receive a cash reward.