According to Anniston police Capt. Allen George, the abuse had been going on for the past two months. The mother called police from a home on Stebbins Street.
George said the daughter told her mother on Tuesday that the family member, a man, had touched her inappropriately. The mother then asked the son, who also said he had been touched inappropriately by the same man, according to the captain.
George said Thursday morning the incident is under investigation.
The suspect could face felony charges of sexual abuse of a child younger than 12.
Staff writer Madasyn Czebiniak: 256-235-3553. On Twitter: @Mczebiniak