San Bernardino, California Sheriff's Office has launched a homicide investigation after a four-week-old baby boy was found not breathing at a residence in Amador Ave, Yucca Valley, Monday February 9th.

Emergency services were called around 4.30am and the baby was taken to Joshua Tree Medical Center, where he was declared dead after resuscitation attempts failed.

Anyone with information is asked to call SB Homicide Dept at (909) 387-3589