Published: Feb 20, 2012 1:45 PM EST
Updated: Feb 20, 2012 4:28 PM EST

DETROIT (AP) - Authorities say a 9-month-old boy was killed when shots were fired into a Detroit home early Monday.
 
Detroit Police Sgt. Gary Diaz says the infant was pronounced dead at a hospital, not long after the 4:30 a.m. incident.
 
Diaz says shell casings have been found outside the home, and the shots could have been fired from a moving car. A witness told investigators a car sped away after the shooting.
 
No arrests have been made. Police have not elaborated further on the circumstances surrounding the shooting.