No fatalities have been reported, Pittsburgh Mayor Ed Gainey said in a news conference at the scene.
There had been 10 “minor injuries,” Fire Chief Darryl Jones said, and three people were transported from the scene. None of the injuries were life-threatening, he said.
Four vehicles were on the bridge when it fell, Jones said. Teams are still performing reconnaissance to ensure no one was under the bridge when it collapsed, he said.
The Allegheny County Police Department was notified about a partial bridge collapse sometime after 6 a.m. on Friday, according to Amie Downs, a spokesperson for the county.
Only minor injuries have been reported, including the driver of an articulated bus and two passengers, Downs said.
The collapse also caused a natural gas line in the area to break, Downs said, but that line has since been turned off. There are some reports of people feeling ill in the area from natural gas, Downs said, and those individuals are being treated on the scene.
Peoples Gas spokesperson Barry Kukovich confirmed the company had a gas distribution line on the bridge that collapsed. “It goes under the roadway and then it goes under the bridge,” he said.
There is no evidence at this time that there was a gas explosion prior to the collapse, Kukovich said. He described the gas line as a distribution line but said it was not a high pressure gas line.
Peoples Gas crews are on the scene assessing the situation, Kukovich said, and nearby customers are experiencing “minimal service interruptions.”
Biden is aware of the collapse, the White House said in a statement, and plans to proceed with his trip.
“The President is grateful to the first responders who rushed to assist the drivers who were on the bridge at the time,” the statement reads.
Bridge is a ‘vital artery’ for the area, official says
In an interview on CNN’s “New Day,” Pennsylvania Lt. Gov. John Fetterman called the bridge a “vital artery” in the Pittsburgh area. The bridge crosses Frick Park, one of the city’s largest parks.
“Thankfully, schools were on a two-hour delay for weather,” he said, “so the traffic was less than it would have been normally on a normal day, but it’s surreal to see this bridge.”
Asked about the collapse coming the same day of the President’s visit, Fetterman, a Democrat, said, “This is a horrible way to underscore just how critical our infrastructure needs are in this country.”
Jeremy Habowski told CNN he feels lucky to be alive after surviving the collapse. He and other drivers were unable to stop in time after the bridge gave way, he said.
“The scariest part was definitely going over the edge because there was a gap and my car left the ground,” he told CNN. His car and others are now sitting on top of what remains of the bridge.
Once things settled, Habowski checked on another driver, he said. Then he climbed up the hill to try and stop other drivers from driving into the debris.
“It was a lot to take in,” he told CNN.
Greg Barnhisel told CNN he and his wife went to see the bridge remains on foot from their home nearby.
“We live about a quarter-mile from the bridge. We didn’t hear it collapse,” he said. “When we got to the site of the collapse, the roaring sound and the smell of the broken gas line were overwhelming.”
“It’s very frightening,” she said. “My goodness, all these ambulances and fire trucks and what not. Just the thought of the bridge collapsing is a very scary prospect. I cross that bridge all the time.”
This is a developing story and will be updated.
CNN’s Paul P. Murphy and Alisha Ebrahimji contributed to this report.