A 2-year-old boy died Tuesday after police found him unconscious with visible signs of trauma in the living room of his family’s Whitestone home, sources said.

Cops found the toddler in the 156th Street home at around 2:30 p.m. before rushing him to Jamaica Hospital, where he was later pronounced dead.

The little boy’s mother was being questioned Tuesday night, and his death, too, was likely to be ruled suspicious, according to the sources.