Police have found a “large quantity” of fentanyl, other narcotics, and drug paraphernalia hidden in a trapdoor at a New York City daycare where a boy died from suspected fentanyl exposure.

Photos released by New York City Police Department show more than a dozen plastic bags filled with brown and white powders.

The investigation is ongoing, police said.

A one-year-old died of a suspected drug overdose at the nursery last Friday.

Nicholas Dominici had been at the nursery for just a week.

Fentanyl had been hidden in the nap room under a mat as he slept, police said.

Three other children were admitted to hospital after being exposed to the powerful narcotic at the Divino Niño nursery in the Bronx.

The nursery’s owner, Grei Mendez, 36, and her tenant, Carlisto Acevedo Brito, 41, are facing federal charges of narcotics possession “with intent to distribute resulting in death and conspiracy to distribute narcotics resulting in death”, according to federal prosecutors.

“We allege the defendants poisoned four babies, and killed one of them, because they were running a drug operation from a daycare centre,” Manhattan US Attorney Damien Williams said on Tuesday.

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