ORLANDO, Fla. -- New pictures of Caylee Anthony, who has been missing since mid-June, were released by her grandparents at a prayer vigil Sunday night.

George and Cindy Anthony said they will continue holding prayer vigils until their granddaughter is found. Their daughter, Casey Anthony, 22, remains jailed on first-degree murder charges in her 3-year-old daughter's disappearance.

E-mails released last week by authorities as part of the discovery process in the case showed a private exchange between Cindy Anthony and her brother, who said he does not believe Caylee is alive.