UPDATE: 24 Injured in Structural Collapse at San Ysidro Border Crossing

Updated 6:35 p.m.

24 people were injured Wednesday when scaffolding being used for renovations collapsed at the San Ysidro Port of Entry, authorities reported.

The accident was reported around 10:45 a.m., Luque said. Northbound traffic has been closed indefinitely and diverted to the Otay Mesa and Tecate border crossings.

Northbound pedestrian traffic and pedestrian bridge were reopened at 6:30 p.m. after inspections concluded the building's integrity was not compromised in the incident.

The collapse was from lane eight across other lanes to the pedestrian processing building, U.S. Customs and Border Protection officials said.

15 vehicles being processed to cross the border were trapped under the debris, which included metal poles and concrete, said San Diego Fire-Rescue spokesman Maurice Luque.

One construction worker was seriously injured, and three people were temporarily trapped when a 50- by 50-foot wooden platform fell.

Medics took two people to Scripps Mercy Hospital, and a third patient
declined medical transport, Luque said. A total 11 people were taken to the hosital, four of whom were construction workers.

City News Service contributed to this report.