A pedestrian was injured Wednesday evening when she was struck by two light-rail trains in St. Paul, officials say.

The woman was crossing University Avenue at Snelling Avenue about 5 p.m., when she was struck by a westbound Green Line train, which knocked her into a passing eastbound train, said Howie Padilla, a Metro Transit spokesman.

The woman remained in critical condition in Regions Hospital on Thursday morning, Padilla said.

The circumstances surrounding the crash are under investigation by Metro Transit Police.

“One thing we always tell people is to obey those crossing lights,” Padilla said.

The incident halted light-rail traffic between the Raymond Avenue and Capitol/Rice Street stations for about an hour.

Both train drivers were placed on leave, which is standard procedure after a crash, Padilla said.