STRATFORD -- Two male suspects remained at large Monday afternoon, after holding up a Stratford video game store at gunpoint Sunday night, police said.

Detectives said the robbery occurred at about 5:20 p.m. at the GameStop store at 411 Barnum Ave. One of the two employees in the store at the time was tied up with a plastic "zip tie," although neither employee was harmed.

The suspects fled the store in a Chrysler minivan after taking about $1,100 in cash, and a few iPhones and iPads, police said.

One suspect was described by police as wearing a black, hooded sweatshirt, jeans and black shoes. He was also carrying a handgun, police said. The other suspect wore a dark, striped, hooded sweatshirt, jeans and white sneakers.

Stratford cops, on the lookout for the minivan, chased the suspects on Interstate 95 south to Bridgeport, where police there joined the chase. The minivan exited the highway, but crashed on East Main Street near Nichols Street on the city's East Side.

The suspects then fled on foot and currently remain on the loose.

During the foot chase, police fired shots at an aggressive dog, Bridgeport police spokesman Bill Kaempffer said.

Stratford police questioned several people about the robbery and were seeking a search warrant for a Nichols Street home that the suspects are believed to frequent.

The condition of the dog was not immediately known Monday afternoon.

Police ask anyone with knowledge of the robbery to call the Detective Division at 203-385-4119.