Police investigate 'suspicious' death of mother and child at Padres stadium in San Diego

San Diego detectives are looking for witnesses and clues after a mother and her 2-year-old son fell and died at a Padres game.

A woman and her 2-year-old son died Saturday afternoon after falling from the stands at Petco Park before the Padres game, investigators said.

The 40-year-old woman and her toddler were at a dining and concession area on the concourse level of the San Diego, California, stadium when, for an unknown reason, they fell three floors down and hit the sidewalk, the Padres said in a statement Sunday.

First responders rushed to the stadium but weren't able to save the mother and son, according to the team.

Investigators said the victims’ deaths "appeared to be suspicious."