Investigators said they found drugs hidden underneath a play area in the Bronx day care where a 1-year-old child was fatally exposed to fentanyl.

Detectives who further searched the day care on Morris Avenue Wednesday found fentanyl, drug paraphernalia and other drugs, police said.

Pictures released by the 52nd Precinct show the stash in a compartment under the floor, which police say was a play area.

The drugs found on Wednesday are in addition to the kilo of fentanyl that investigators found Monday stored near children's play mats.

Carlisto Acevedo Brito, 41, and Grei Mendez, 36, face federal charges in connection to the baby’s death. The federal charges follow 28 counts the pair face from the NYPD, including murder, manslaughter, assault and various drug charges.

Two of the children — a 2-year-old boy and an 8-month-old girl — recovered, but Kenny said the 1-year-old boy was pronounced dead at Montefiore Hospital.

Bronx Councilmember Pierina Sanchez, who represents the district where the day care is located, says inspectors should have done more to identify problems at the site before the children were exposed.

"What are the protocols that are followed? Is every person asked for a background check that has access to the apartment, that has access to the facility? Is every single room, every single closet checked? Some of the answers to this are yes and we still missed it,” she said in an interview Thursday.

Records from the New York State Office of Children and Family Services show the day care center was first licensed in May and is allowed to care for up to eight children between the ages of six weeks and 12 years. The center was inspected earlier this month and did not receive any violations.

Police say they are still searching for Mendez’s husband in connection to the case.