An explosion killed four in a village of north China's Shanxi Province Tuesday, local authorities said Wednesday.

The explosion happened at 8:40 a.m. in a cave-house in Anjiagetai Village, Sanjiao Town, Linxian County of Luliang City in Jiangxi, police said.

Detonators were found at the scene, police said.

The house belongs to villager Gao Yuhai, who fled with his wife after the explosion, police said.

Villagers said some strangers came to the village on late Monday and lived in Gao's house, police said.

Police are looking for Gao and his wife and the dead have not been identified.

Further investigation is underway.