Mysterious Swarms of Flying Bugs Seen Across Philadelphia, Police Baffled

A picture shows the court covered in flying ants as Ukraine's Sergiy Stakhovsky plays against Japan's Kei Nishikori during their men's singles second round match on the third day of the 2017 Wimbledon Championships at The All England Lawn Tennis Club in Wimbledon, southwest London, on July 5, 2017. OLI SCARFF/AFP/Getty Images

Mysterious swarms of fighting insects seen in Philadelphia have left many people baffled.

All across Philadelphia residents have reported sightings of the bugs. But it is not clear if they are gnats, flying ants, or termites, according to the Philadelphia Media Network.