A hotel near Lambert-St. Louis International Airport was a makeshift operating room for a buttocks-enhancing procedure that resulting in a woman’s death.

Edmundson, Missouri police say 22-year-old Daysha Phillips went to the Drury Inn with three other women to receive butt injections, a procedure Phillips’ aunt says she’d undergone before.

The aunt tells Fox 2 her niece was charged $300.

Soon after the injections, Phillips became sick and her heart stopped. She died at a local hospital a few days later.

“From what I’ve been told, it’s a rather large needle,” police chief Miklos Hurocy says. He adds the woman’s injection point was sealed up with super glue.

Edmundson police are now working with their colleagues in Dallas, Texas to determine if that case is related to another “illegal” butt injection scheme that went awry there earlier this year.

In that case, Denise “Wee Wee” Ross and a transgender woman named Jimmy “Alicia” Clarke are accused of fatally injecting Wykesha Reid in the buttocks.

Another “patient” of Ross and Clarke told investigators the procedure was “painful” and the injection sites were closed with super glue and cotton balls. That procedure allegedly cost $520.

According to an autopsy, Reid died from silicone entering her veins, “traveling through her heart and becoming trapped in her lungs.”

“The lungs can’t operate, and the heart is trying to pump against the sludge in the lungs, so that shuts down the heart too,” Dr. Greg Davis, a pathology professor at the University of Kentucky’s College of Medicine, tells the Dallas Morning News. “The brain’s not getting any oxygen, so a person can relatively quickly die, from within seconds to a few minutes.”

Ross is charged with murder and practicing medicine without a license and is currently “under house arrest with an electronic ankle monitor,” the news station reports. A judge has ordered her to not leave the Dallas area.

Edmundson police currently have no suspects.