By Steve Patterson

SWIFTWATER, Pa. (CBS) — Shots were fired Friday night during the search for the suspected killer of a Pennsylvania State Trooper, and police have surrounded a home where they believe the suspect, Eric Matthew Frein, 31, is hiding.

READ MORE: Drag Racing On Temple University's Campus Turns Violent, Police Say

It’s not known right now whether anyone was hurt during in the gunfire.

State Police are making their rounds, telling residents in Monroe County to stay inside their homes and to stay away from windows.

There are hundreds of law enforcement officials in Swiftwater, Pennsylvania, about 30 or 40 minutes from where the shooting of Corporal Brian Dickson took place.

READ MORE: Segura 2 HRs, Nola Sharp, Phillies Beat Mets, Win 4th In Row

Frein has been named the chief suspect in the shooting, and since then the FBI has placed him on the ten most wanted fugitives list.

Law enforcement officials say he has an extensive background in weapons and survival tactics, and is considered extremely dangerous.

Police believe they have Frein cornered in what they are calling a stand-off situation.

MORE NEWS: 2 Men Killed, 1 In Critical Condition After Shooting Inside North Philadelphia Deli

Stay tuned to CBSPhilly.com for more details on this developing story.

You may also be interested in:
[display-posts category=”news” wrapper=”ul” posts_per_page=”5″]