KING OF PRUSSIA, Pa.—A $30,000 reward is being offered for information leading to the safe return of a 10-month-old baby who was abducted from a suburban Philadelphia apartment where her grandmother was killed.

Saanvi Venna (SAHN'-vee VEHN'-ah) has been missing since her 61-year-old grandmother, Satyavathi Venna (saht-yah-VAH'-thee VEHN'-ah), was murdered inside the apartment in King of Prussia. Investigators believe the abduction happened between 8 a.m. and 1 p.m. Monday.

Police have been searching the apartment complex and surrounding area. Law enforcement and community groups are offering a $30,000 reward.

Upper Merion Township police say the girl's father, Venkata Konda Siva Venna, and mother, Chenchu Latha Punuru, immigrated to the U.S. from India in February 2007 and moved to the apartment in June.

The grandmother arrived in July and was scheduled to return home in January.