Three female teenagers were hospitalized late Tuesday night after overdosing on an unknown substance at an apartment on the 2000 block of 20th St.

“Two of the females have been listed as critical but stable condition and the third is conscious, alert and is recovering,” said SMPD Public Information Officer Rudy Flores.

Officers responded to a call for a possible overdose at around 11 p.m. on Tuesday night. The Santa Monica Fire Department transported the three juveniles to a local hospital for treatment.

This is an active investigation and SMPD detectives are working to obtain more information on the event and case.