A 2-year-old boy was found dead in a plastic storage container in his family's apartment on Thursday after what his mother called a fatal game of hide-and-seek with his young siblings, police said.

The 24-year-old mother told police that she last saw little Anthony Pena alive at about 9 p.m. Wednesday, when she put him and two siblings, ages 4 and 6, to bed in their Bronx home.

She claimed that during the night the children sneaked out of bed to play hide-and-seek. She said one of the older children apparently put Anthony in the container and went back to sleep without letting him out.

The mother awoke Thursday to discover Anthony's body inside the container.

She and the boy's 28-year-old father were questioned by police, but there were no arrests.

The medical examiner was to determine the cause of the boy's death.