The harrowing search through the rubble of a collapsed Brooklyn apartment building is “very reminiscent” of the World Trade Center horror, an FDNY chief said Thursday — while warning that chunks of neighboring buildings are still expected to fall.

At least eight people are dead and 17 wounded after a three-story building fell into an open excavation in Flatbush on Wednesday, with officials warning it could take at least three days to go through the rubble.

“It becomes a very complex, time-consuming search where [we’re] crawling in and around the collapse, looking for void spaces, searching those void spaces,” John Esposito, Chief of Department for the FDNY, told FOX 5 early Thursday.

“To me, it’s very reminiscent of the searches we were doing at the Trade Center,” he added.

The operation could last at least three days, Esposito said — with neighboring buildings also at risk.

However, the FDNY is “confident” no other buildings will collapse, even though “pieces” of an adjoining building are expected to fall, adding to the danger of the mission.