According to the Associated Press News, a 50-year-old bridge collapsed in Pittsburgh early Friday, requiring rescuers to rappel down a ravine and form a human chain to reach a few occupants of a municipal bus that plummeted along with the span. No deaths were reported.
At least four people required hospital treatment. Five other vehicles were also on the bridge at the time. The cause was being investigated, and crews searched under the debris for additional victims.
A large crack showed on the end of the bridge where the segmented bus landed 150 feet (46 meters) down in the ravine.
The Forbes Avenue Bridge over Fern Hollow Creek in Frick Park came down at 6:39 a.m., city officials said. The loud noise from the collapse was followed by a hissing sound and the smell of natural gas, witnesses said. Ruptured gas lines along the bridge produced the leak, and the supply of gas was shut off within a half-hour, city officials said.
The collapse came hours before President Joe Biden arrived in the city to promote his $1 trillion infrastructure law, which has earmarked about $1.6 billion for Pennsylvania bridge maintenance.
The National Transportation Safety Board was sending a team of about 10 people to investigate, an agency spokesperson said.