(Reuters) - At least nine construction workers were injured, three of them critically, in a partial bridge collapse at a building project on a Southern California freeway, authorities said on Saturday.
The incident took place on Friday night on the 91 Freeway in Corona, about 50 miles (80 kms) southeast of Los Angeles.
Jacks failed as part of an onramp bridge was being set into position, causing the deck to drop and hit wooden support beams, the Riverside County Transportation Commission said in a statement.
"The support beams hit workers, causing injuries," the commission said in a statement.
All of the injured workers were taken to area hospitals.
(Reporting by Jon Herskovitz in Austin, Texas)