(AP) — A blast on Sunday at a building in Myanmar said to have been storing explosives for mining has killed more than 45 people, according to rescue workers and independent media reports.

About 70 other people were injured in the explosion that took place around noon in the village of Kaungtup, in Namhkam township.

The area, located about 3 kilometres (2 miles) south of the Chinese border, is under the control of the Ta’ang National Liberation Army, an ethnic armed group which has engaged in sporadic fighting against Myanmar’s central government.