Police in suburban Philadelphia are searching for a gunman who allegedly shot three people before carjacking a vehicle and fleeing to New Jersey, according to police and reports. 

Law enforcement authorities identified the suspect as 26-year-old Andre Gordon, who remains at large. 

Gordon was "tracked to his home" in Trenton, and a SWAT team from the Trenton Police Department responded, NBC News reported.

Falls Township police in Bucks County issued a "shelter in place" order while the search for Gordon was underway. It has since been lifted.

The mayhem began around 8:52 a.m. when Falls Township police responded to calls for a shooting at Levittown.

Gordon allegedly shot two people at a residence, NBC News reported.

From there, police said Gordon fatally shot a third person at another residence in Levittown.

Shortly after, around 9:13 a.m., an armed Gordon allegedly carjacked a driver in the parking lot of a Dollar Store in nearby Morrisville.

The driver was uninjured, the report said. 

Police believe Gordon knew the three victims. 

He is described a 6-foot-1, wearing a dark hooded sweatshirt and could be in possession of more weapons.

The vehicle he carjacked is a 2016 gray Honda CRV with a Pennsylvania license plate and a "Namaste" sticker on the right bumper.Gordon is believed to be homeless with ties to Trenton. 

This is a developing story.