South Sudan says Sudan has launched attacks inside its territory, killing at least five people.

Military spokesman Col. Philip Aguer said Thursday that the attacks came on Christmas Day, killing three women and two children.

Aguer said Antonov warplanes bombed the village of Werguet, in Northern Bahr el Ghazal state, while ground forces working with "militiamen" attacked nearby Kiir Adem. Aguer said the areas are part of South Sudan.

The areas are near the Kiir River, the southern boundary of a 14-mile strip of territory claimed by both countries. Sudan and South Sudan reached an oil and border security deal in August that called for the area to be demilitarized until its final status could be determined.

A Sudanese government spokesman couldn't immediately be reached for comment.