A member of the Darby Township Police Department and officers from surrounding areas were playing at the 69th Street Recreation Area when shots were fired just after 9 p.m., police said.
Nobody was struck, and officers do not believe any of them were targeted, police said.
"It was still a harrowing incident," Darby Township police said on Facebook Wednesday morning.
Anyone with information, photos, or videos is urged to contact the Upper Darby Police Department at (610) 734-7693.
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