A bridge collapsed in Pittsburgh Friday morning, sending three people to local hospitals with non-life-threatening injuries, officials said.

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On Location: January 28, 2022

Three or four vehicles were on the bridge at the time of the collapse, Pittsburgh Fire Chief Darryl Jones said.

Ten people reported minor injuries including the three victims who were hospitalized, Jones said.

First responders trying to help in the icy conditions were among the injured, he said.

Responders rappelled down about 150 feet to reach the collapse site, Jones said. Crews also made human chains to conduct rescues.

Vehicles are seen on a bridge that collapsed in Pittsburgh, Jan. 28, 2022.
© Gene J. Puskar/APVehicles are seen on a bridge that collapsed in Pittsburgh, Jan. 28, 2022.

Officials are now working to make sure there are no victims under the collapsed bridge, Jones said.

The cause of the collapse is under investigation.

Emergency crews respond to the scene of a bridge collapse near Frick Park in Pittsburgh, Jan. 28, 2022.
© WTAEEmergency crews respond to the scene of a bridge collapse near Frick Park in Pittsburgh, Jan. 28, 2022.
The scene of a bridge collapse near Frick Park in Pittsburgh, Jan. 28, 2022.
© Greg Barnhisel/TwitterThe scene of a bridge collapse near Frick Park in Pittsburgh, Jan. 28, 2022.

Pennsylvania Lt. Gov. John Fetterman called the bridge "a vital infrastructure artery" for the city, adding, "It’s surreal this morning to see it completely collapsed."

“Thank God that school buses were delayed due to weather, so there was less traffic than normal. Thank God there have been no casualties reported at this point. I wish all of those who were injured a safe and swift recovery," Fetterman said.

President Joe Biden heads to Pittsburgh Friday to tout his Bipartisan Infrastructure Law, which would provide $1.63 billion to Pennsylvania in federal funding for bridges, the third highest figure for any state. The bridge program will provide $27 billion across the country.

Pennsylvania has 3,353 bridges in poor condition, the second most after Iowa, according to federal data.

MORE: Biden to Pittsburgh to push infrastructure improvements as local bridge collapses

But the Biden administration has repeatedly said it is up to local officials to determine which bridges receive the money.

Biden has been informed about the bridge collapse and will continue with Friday's planned trip, White House officials said.

First responders load an empty stretcher into an ambulance at the scene where a bridge collapsed, Jan. 28, 2022, in Pittsburgh.
© Gene J. Puskar/APFirst responders load an empty stretcher into an ambulance at the scene where a bridge collapsed, Jan. 28, 2022, in Pittsburgh.
The scene of a bridge collapse near Frick Park in Pittsburgh, Jan. 28, 2022.
© Greg Barnhisel/TwitterThe scene of a bridge collapse near Frick Park in Pittsburgh, Jan. 28, 2022.

Fetterman said in a statement, "This collapse is just the latest in a long line of preventable, man-made disasters that prove what so many of us in Pennsylvania and around the country have been saying for years: Our infrastructure is failing our people."

"We need to make use of the legislation President Biden ushered in, rebuild our roads and bridges, and fix our faulty infrastructure," he said.

The bridge was last inspected in September 2021, officials said.

The National Transportation Safety Board is sending a team to the scene.

This is a developing story. Please check back for updates.

ABC News' Sarah Kolinovsky and Joshua Hoyos contributed to this report.

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