The Virginia Department of Transportation continued Monday to investigate the cause of a weekend bridge collapse in Giles County that injured nine people, one seriously.

The Virginia 749 pedestrian bridge over Big Walker Creek collapsed about 2 p.m. Sunday while 10 people were using it, according to Virginia State Police.

Nine of 10 people, including an undisclosed number of children, were taken to Carilion Giles Memorial Hospital.

The names of the injured were not released Monday. State police deferred to VDOT officials to release the names. VDOT officials said the names could be released only by state police.

On Sunday, state police said one of the victims was seriously injured. No update on that person's condition was given Monday.

The 100-foot-long cable-and-wood bridge hung about 30 feet above Big Walker Creek and served as a secondary access for three households, VDOT spokeswoman Heidi Coy said. It was used mostly when flooding made a nearby low-water bridge inaccessible to traffic.

VDOT engineers are investigating the cause of the collapse, Coy said.

This is the second instance of a bridge across Big Walker Creek collapsing this year. The Virginia 713 bridge collapsed in June when the driver of a cement truck weighing more than the bridge's posted limit tried to cross.

The driver, 30-year-old Paul Daniel Bowman of Bluefield, was found guilty of failure to obey a highway sign and fined $500.

-- Tonia Moxley