The city began setting up a migrant Shelter with 100 cots and baby supplies at Brooklyn’s McCarren Park Friday as Mayor Eric Adams refused to discuss the controversial move.

Workers unloaded items from trucks to retrofit the park’s popular Play Center — which houses a basketball court and gym in hipster-friendly Williamsburg — and brought in “cots, military style,” cribs and baby formula.

The facility, which Adams initially said would house “80 adult” migrants, appeared to be prepped for a family shelter — complete with baby wipes and toddler cots. There was no explanation from officials Friday about the discrepancy.

Other boxes were labeled “supplies to support shelter staff and facility set-up,” and included face masks, megaphones, extension cords and posters with rules. 

On Wednesday, Adams notified local lawmakers that roughly 80 adult Asylum Seekers will move into a wing of the recreational center — the latest development in the city’s spiraling migrant crisis.

Asked about concerns neighbors may have about the facility Friday, Adams only said, “Everybody should have concerns.”

 “We need the federal government’s help and when we make announcements on our next move, we will let everybody know,” he told The Post before walking away.

The asylum seekers will be housed in the south wing of the McCarren Play Center, which currently features open multi-purpose rooms and has hosted fitness, dance classes, a city staffer on-site said.

The area has toilets but no showers, which will need to be brought in to the center, the staffer said, adding migrants will enter via a dedicated door beside the skate park.

Officials have insisted that “public access to the pool and fitness center will not be impacted” and that “additional security will be in place to ensure everyone’s safety.”

“As we have emphasized repeatedly, with nearly 100,000 asylum seekers that have come through our intake system since spring 2022 — and hundreds more continuing to arrive in our city, asking for shelter on a daily basis — New York City has been left alone to deal with a national crisis that demands difficult and swift decision-making,” Adams said Thursday night.

“We are constantly searching for new places to give asylum seekers a place to rest their heads, and, most recently, located a wing of the McCarren Recreation Center in Brooklyn to house adult asylum seekers.”

It wasn’t immediately clear Friday if the center will function as an official family shelter for asylum seekers.