Authorities in Philadelphia say one person was killed and at least seven others were wounded in a shooting at a graduation party Sunday night, the AP reports. CBS Philadelphia reports that the shooting occurred shortly before 10:30pm near South 70th Street and Reed Bird Place in the southwest of the city. Authorities say four teenagers between the ages of 15 and 17 suffered gunshot wounds to their legs. Four adults in their 20s were shot in various parts of their body. Police said the one fatality was an adult. The shooting is one of numerous homicides that occurred amid a rash of gunfire around the city that also wounded a number of other people throughout the weekend. Authorities have not provided a motive for the shooting, and no arrests have been made. (More Philadelphia stories.)