One person has been killed and at least seven others have been shot during a graduation party in Philadelphia, authorities said.

TV station KYW-TV reported the shooting occurred on Sunday shortly before 10.30pm local time.

Authorities said four teenagers between the ages of 15 and 17 suffered gunshot wounds to their legs.

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Four adults in their 20s also suffered gunshot wounds.

Police said the one fatality was an adult but authorities have not provided a motive for the shooting.

No arrests have been made.

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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.