A 73-year-old woman who fell onto Metro tracks Saturday was pulled back onto the platform by fellow riders, the transit authority said.

The incident happened at the Dupont Circle station shortly before 2:30 p.m., Metro spokesman Dan Stessel said. It is not clear how the woman fell onto the outbound tracks, he said, but she was helped to safety by bystanders.

The woman, who was not identified, was taken to George Washington University Hospital with a non-life-threatening head injury.

Stessel said there was no train in the immediate area when the woman fell and the incident had no impact on Red Line service.