COLUMBIA — Relatives of a South Carolina boy missing since Thanksgiving have scheduled a candlelight prayer service.

Jocelyn Jennings Nelson says a vigil and candlelight service are planned Thursday for her grandson, Amir Jennings. The service starts at 6 p.m. at Frances Burns United Methodist Church in Columbia.

Amir was 18 months old when Nelson reported him missing around Thanksgiving.

The boy’s mother has been in jail since late December on a cruelty to children charge. Police say Zinah Jennings has lied to them about where her son is, and authorities are analyzing stains on blankets and clothes removed from Jennings’ car after a Christmas Eve wreck to see if they are blood.

Her attorney says Jennings is pregnant and is on psychiatric medication.