A 9-month-old boy from Queens died of unknown causes, police said Wednesday.

On Monday at about 7:20 a.m., police responded to a 911 call. Maksim Ilic was found unconscious and unresponsive at 80-23 59 St., Queens, police said.

EMS transported the baby to Wyckoff Heights Medical Center, where he was pronounced dead.

There were no obvious signs of trauma and a medical examiner will determine his cause of death, police said.