NEW YORK (AP) — It only took two kittens to stop the city’s subway in its tracks.

Power was cut to the B and Q lines in Brooklyn for more than an hour after a woman reported Thursday morning that her kittens were loose in the nation’s largest subway system, transit officials said.

The furry felines, one black and the other white with gray stripes, were finally found on the tracks and rescued about seven hours later.

How they got there was a mystery. But they were seen running dangerously close to the high-voltage third rail.

Their owner rushed to a subway station with cat food for transit workers dispatched onto the tracks to use to try to corral them.

Power was suspended between several stops — about half the Q line and the B line’s entire service in Brooklyn — on the local and express tracks for 90 minutes, Metropolitan Transportation Authority spokeswoman Judie Glave said.