A Sudanese MIG jetfighter killed three children and their mother, and wounded one baby in Lagawa County of South Kordofan on Tuesday.
On Sunday, in a previous air attack, another three children were killed.
SPLA-North spokesperson Arnu Ngatulu Lodi told Voice of Peace that the Sudanese warplane attacked Alshua village in Tulushi area of Lagawa County on Tuesday.
He said ten goats, one donkey and seven chickens were also killed.
Mr Ngatulu added that some houses were burned during the airstrike.