The boys, aged from six to 13 years, were rescued in Mardan in North West Frontier Province (NWFP), Geo TV said.
Meanwhile, the children were shifted to a rehabilitation centre where they will receive psychiatric treatment.
“These children have been brainwashed in a way that now they even want to kill their own parents,” Bashir Bilour, a minister in the provincial government said, adding that the children were not administered any drugs during training.