Police are probing a possible link among at least four violent invasions, and there may be many more.
Authorities took three suspects into custody Thursday night, and brought more in Friday morning.
Police believe the burglars are part of a ring targeting Asian merchants.
The latest incident happened above the China Moon restaurant on MacDade Boulevard. The owner and his family live in an apartment on the second floor of the buiding.
At around 3:00 a.m., two masked men broke into the apartment demanding money. Police say one of them pulled a gun and fired a shot into the floor.
A Wednesday night attack happened on the 100 block of Ferguson Avenue in Broomall.
Police say the victim had just returned home from the restaurant her family owns on West Chester Pike in Upper Darby.
As she entered the home, two men attacked her and her 15-year-old who was inside. A third man was waiting out front in a car.
The victim believes she had been followed from the restaurant by her attackers, who got away with $1,500.
On Monday night, police say three men dressed in ski masks and dark hoodies followed a couple home from their business in West Philadelphia to the 400 block of Hampshire Drive.
The men then entered the house through sliding doors, demanded money and bound the couple in their upstairs bedroom. They got away with cash and more.
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