Traffic snarled as fire crews race to quickly extinguished fire at Children's Hospital

A researcher in the basement of 30 Blackfan St. "had a small flash fire while working on a project" shortly after 2 p.m., Boston Fire reports.

By the time fire crews arrived, the fire was out, although light smoke filled the lower two floors of the building. Boston Police tweet traffic in the Longwood Medical Area and along Huntington Avenue was all messed up.

The worker was able to walk herself to the hospital emergency room for evaluation; fire and hospital officials continue to investigate the cause of the brief fire.

Traffic at Huntington and Longwood, taken by Robert Storlazzi, who reported shortly after 3 p.m. that Longwood was open to traffic again but that Huntington was backed up to Symphony: