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Editor’s note: An earlier version of this story contained incorrect information about the driver. The driver is in critical condition and the story has been corrected based on updated information from police.

SAN DIEGO — A San Diego Gas & Electric SUV plowed into the back of a stationary school bus at a Barrio Logan intersection Tuesday, gravely injuring the 53-year-old SDG&E employee behind the wheel of the company vehicle, authorities said.

The San Diego Unified School District bus, which had no students aboard, was stopped for a red light at Boston Avenue and South 28th Street when the southbound Mitsubishi Outlander rear-ended it shortly before 8:30 a.m., according to police.

Video from Onscene.TV showed the van wedged under the back of the bus. The driver of the van, whose identity was not immediately available, was transported to UCSD Medical Center where he was listed in critical condition, authorities said.

The circumstances leading up to the crash are under investigation.