CONCORD, N.H.- New Hampshire authorities say an autopsy of a 2-year-old boy who died under suspicious circumstances shows his death was a homicide.

The autopsy also has revealed that the boy's cause of death was blunt force trauma to the abdomen.

Manchester police responded to a home at 11:30 a.m. Monday for a report of an unconscious toddler. The boy was taken to a hospital, but was pronounced dead a short time later. He's been identified as Jacob Pelletier.

Attorney General Gordon MacDonald said Wednesday the investigation into the circumstances that led to Pelletier's death is ongoing.