CHICAGO (CBS) – Two people are found dead near O'Hare Airport just hours apart on Saturday, according to police.

An unaged woman was first discovered unresponsive on a CTA railcar, in the 1000 block of West O'Hare Avenue around 3:12 a.m.

She was taken to Resurrection Hospital where she was pronounced dead.

Police say she may have died from an overdose.

About nine hours later, a 36-year-old man was also found unresponsive, in the 0-100 block of West O'Hare Avenue around 12:30 p.m..

He was also taken to Resurrection Hospital where he was pronounced dead.

Police are conducting death investigations in both cases.