Police say a Utah woman opened a newly purchased box of tampons and found that two were filled with cocaine.

Cindy Davidson says she bought the box from the NPS store, which is a discount store in Salt Lake City that sells misdirected or damaged freight products. But she didn't realize the box had been tampered with until later that night, reports CBS affiliate KUTV.

Although the outside packaging appeared undisturbed, instead of a tampon inside the applicator, there was reportedly a bag of cocaine.

According to local station KSL, Davidson inspected four of the sixteen tampons and found two of them were filled with the white powder wrapped in cellophane.

"I started getting nervous because I thought it might have been a terrorist attack," she reportedly said.

"I called police and the police came, and the hazardous materials unit came, and the fire department, and the Taylorsville Police and the Salt Lake Police," Davidson said.