The 'no-snitch' culture is in full force in Upper Darby, Delaware County, Pa., after a 17-year-old boy was shot in the back and killed during an incident at a weekend party.

Upper Darby Police Superintendent Michael Chitwood tells DelCoTimes.com that despite dozens of potential witnesses to the teen's fatal shooting, no one is cooperating with police.

The 17-year-old was fatally shot on a township street Saturday night after he fled from an altercation at a party attended by some 30 people, authorities said told the news website.

Chitwood called it a "disgrace" and a "lack of caring" that no one has come forward to provide information about what led up to the fatal shooting.

Chitwood told DelCoTimes.com the "no-snitch" culture surrounding homicides, shootings and violent crimes is nothing new to him, saying he sees it more and more with these types of cases:

"I've been doing this for 50 years, it's been part of the culture ... but it's disgusting and disgraceful to see these bums allowed to take over the neighborhood. Until they come forward, the neighborhood won't be safe. No matter how you address it, that's the bottom line."

From DelCoTimes.com:

The victim, whose identity was not immediately released, apparently was fleeing some type of altercation inside the house when several men chased him out into the street.

That's when gunfire erupted and the teenager was shot at least three times. He succumbed to his injuries in the 500 block of Glendale Road.

The victim, the suspected shooter and witnesses all were at the party before the shots were fired.

The police investigation continues, despite the lack of cooperation.

Anyone with information is asked to called Upper Darby detectives at 610-734-7693.