Three people allegedly overdosed on an unknown drug early Saturday morning and one, a 15-year-old boy, remains in critical condition.

The other two individuals were in stable condition, according to the Colorado Springs Police Department.

All were transported to Memorial Hospital.

The case was taken over by the Major Crimes Unit later Saturday.

No charges have been filed.

Police responded to 24 1/2 Bonfoy Ave. at 1:20 a.m. Saturday, according to the police report.

When they arrived, police said they found three people who needed medical attention because of a drug overdose.

No other details were available.