ST. PAUL — The Department of Public Safety wants to warn Minnesotans about the dangers of a drug called marijuana wax.

Authorities are planning to discuss the drug at a news conference Wednesday.

Marijuana wax has been showing up in Minnesota, and has led to recent overdoses of two teens in Duluth. In addition, authorities say an elderly woman in St. Cloud recently died after a marijuana wax manufacturing operation exploded.

The DPS says marijuana wax is dangerous. It is a concentrate of marijuana, and the Drug Enforcement Administration says users typically put it in an electronic cigarette or vaporizer and smoke it.

It has high levels of THC, which can create a more intense physical and psychological effect in users. Long-term effects of the drug are unknown.