By Mary O’KEEFE

Glendale police are advising residents to be alert and contact law enforcement if they see anyone suspicious after two suspected Knock-Knock burglaries occurred in local neighborhoods.

Today at about 2 p.m. police responded to a call to the 3700 block of Pontiac Street concerning a burglary in progress. When they arrived the resident reported that she had heard someone knocking at her front door.

She didn’t answer the door but stayed in her bedroom, it was a short time later she heard someone kick in her back door, said Sgt, Tom Lorenz.

The suspects entered her home and she called police who arrived shortly thereafter. For some reason the suspects fled the home before police arrived.

Nothing appeared to be stolen from the home.

A similar incident occurred yesterday (Wednesday) nearby in the 4900 block of Dunsmore Avenue.

The descriptions of the suspects are the same in both the Pontiac Street and Dunsmore Avenue incidents: The first suspect is described as  a male black, heavy-set and muscular, he was wearing a black printed shirt and dark pants. The second suspect was described as a female black, short and weighing 150 pounds. She was wearing orange pants. Witnesses saw a gray vehicle in the area.

The suspects appear to operate by knocking on the resident’s door to see if anyone is home. When no one answers they often go to the back of the home and break in. They are referred to as Knock-Knock burglaries and have happened in Crescenta Valley and La Cañada Flintridge in the past.

Lorenz reminds residents that if they hear a knock on the door and see someone suspicious to call 911. If it appears that no one is home the suspects will take advantage of the situation. It is better not to ignore a knock on the door.

Police are patrolling neighborhoods but need help from community members.

“If [residents] see someone or something suspicious they should call police,” Lorenz said.