Authorities say 36-year-old Robert Williams was shot on the abdomen and 25-year-old Ida Rodriguez, who is pregnant, was shot in the arm around 10 p.m. Monday.
Police tell The Press of Atlantic City that they found 30 shell casings at the scene.
A few bullets went into the wall of an apartment, where one grazed resident Elvis Begnero in the left knee.
None of the wounds are considered life-threatening.
Relatives who were at the party said they initially thought the gunfire was firecrackers.
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Information from: The Press of Atlantic City, http://www.pressofatlanticcity.com
