A tech-savvy NYPD officer used a smartphone to track down and arrest, with help from his partners, an armed suspect wanted for murder in North Carolina, officials said Wednesday.

The officers responded Tuesday afternoon to a report of a car being stolen in the vicinity of Warren Street and Broadway in lower Manhattan.

The victim, a woman, 55, said her car was stolen when she went inside a bank.

She had a GPS app on her phone that could track her car, she said, but the phone was in the vehicle.

Officer Adam Riddick, who previously worked for Apple as a technical repair specialist, used his own phone to download the Linksup app and quickly saw that the car, a 2014 Honda Pilot, was heading over the Brooklyn Bridge.

Riddick, who lives in Brooklyn, pursued the vehicle, joined by his partners, Andrew Vlasaty and Eric Skoglund, officials said.

They stopped the suspect, Kendrick Gregory, 21, on Smith Street and found weapons in the car.

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After making the arrest, the officers learned that Gregory was wanted for murder and other crimes in Raleigh, North Carolina.

According to Raleigh police, Gregory is wanted for the Monday night shooting death of a pawnshop owner and the rape of a 15-year-old girl afterward.

"It is flabbergasting," said Riddick, who's been on the force four years. "We didn't expect that much. It mushroomed very quickly."

No shots were fired during the arrest, but Vlasaty, a four-year cop, said Gregory had been armed with a loaded .45-caliber pistol.

Skoglund, a three-year veteran, said the suspect put up a fight.

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"It was iffy," the officer said. "So we went at it kind of hard."