STORY: Smoke billowed from the rubble of the collapsed section of the northbound lanes of I-95, the main north-south interstate on the East Coast. Video showed emergency vehicles and workers gathered in the area. Traffic in both directions of the eight-lane highway was halted due to concerns about the structural integrity of the remaining southbound lanes.

This stretch of the I-95 corridor sits in the dense northeast section of Philadelphia and connects the city to its northern suburbs, like Bucks County.

On a Sunday in the summer, it’s routinely used by beachgoers coming home from the Jersey Shore. During the week, it’s crowded with commuters and vehicles traveling to Boston, Baltimore and Washington.

Firefighters battled a large fire coming from a vehicle, Philadelphia Fire Battalion Chief Derek Bowmer told reporters.

Dominick Mireles, the director of the city's Office of Emergency Management, said officials were concerned about the accident's potential impact on the environment due to the proximity to the Delaware River.

"Today is going to be a long day," he said, adding that recovery efforts are likely to take time.