Police told the Delaware County Daily Times ( http://bit.ly/17GT8vb) that the gunfire erupted at about 1:30 p.m. Wednesday in Chester.
Investigators said the woman was hit as well as a man in his early 20s believed to have been the intended target. Both were rushed to Crozer-Chester Medical Center.
Police say it was the day's third shooting in the city. A man injured in a 3 a.m. Wednesday shooting nearby and another man hit by gunfire several hours later were both in stable condition.
Investigators say they don't know whether any of the shootings are related.
Information from: Delaware County Daily Times, http://www.delcotimes.com