Two suspects reportedly are in custody after a standoff with police following an overnight break-in of a suburban Philadelphia gun shop.

Tullytown Police Chief Daniel Doyle said the burglary happened at Mike's Gun Shop and Sporting Goods in Levittown.

Authorities said they found one suspect in a neighboring business's ventilation system. Hours later, a second suspect was arrested without shots being fired, CBS Philly reports. There were no injuries reported.

Police said they found signs of forced entry through the roof of the gun shop around 2:30 a.m. and later saw a suspect on the roof.

A SWAT team was dispatched.

Police say officers found the apprehended suspect in a pizza shop that's located in the same building as the gun store.

The Levittown Shopping Center is shut down, parts of Levittown Parkway are closed and local schools delayed opening.

Officials made automated calls telling nearby residents to stay inside.

The Associated Press contributed to this report.