Hundreds of migrants who had just moved into a converted former Manhattan prison were temporarily evacuated on Saturday after the plumbing there “exploded”, officials and witnesses said.

Sometime during the afternoon, the plumbing issue was discovered at the shuttered Lincoln Correctional Facility in Harlem, which had just opened its doors to migrants on Thursday, according to a city hall spokesperson.

Turkish migrant Hussain Uzun told The Post that the pipes burst.

“This building is sh-t. The plumbing, the pipes exploded,” he said outside of the facility.

The migrants temporarily vacated, and some were moved to facilities out of town, including 10 bused to Albany, officials and sources said. A City Hall spokesman said late Saturday “the issue has been resolved and all asylum seekers still on site are able to return inside.”

“The facility was always accessible and while we worked to get it fully back online we offered all asylum seekers staying at this facility a place to wait or an alternate location to move for tonight.”

At around 8 p.m. Saturday, a crowd of about 100 migrants still lined 110th Street outside of the old jail.

In addition to the handful of migrants sent to Albany, another 18 were taken to Saint Brigid’s — a former Catholic church in the East Village that has opened its doors to migrants, sources told The Post.

Around 8:20 p.m., security began letting the migrants back into the building.

“I don’t know what this building is. They put us all here from the hotels and they’re not answering questions. We don’t know where we are going from here.”

Uzun said that on his crowded floor there are as many as 15 men to a room. He said the housing has become overcrowded “because everyone is coming.”

The eight-story Lincoln Correctional Facility on West 110th Street in Manhattan opened on Thursday for single adult men – meaning no families – and can accommodate about 500 people. 

Migrant M. Reyes, of Managua, Nicaragua, said they announced the pipes burst at about 11 a.m. 

Since moving into the facility, he’s also found the living situation to be substandard than previous accommodations.

“I’ve only had one day here and it’s not good,” said Reyes, who said he left his home country because he worked in government and it wasn’t safe. 

“I think it’s more better at the other shelter that I stayed,” he said.

Mayor Eric Adams has estimated that the migrant crisis will cost the city more than $4.3 billion through next spring, as city officials have become so desperate in their scramble to find space for newcomers that they have controversially begun shipping busloads to motels and hotels elsewhere in the state.

In addition to the repurposed prison, Gov. Kathy Hochul said that an airport hangar at JFK will be converted to create a large space to house the surge of migrant newcomers.