A blast in northeastern Myanmar killed at least 45 people on Sunday, rescue workers said, with rebels controlling the region saying it was caused by the accidental detonation of mining explosives.

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 kilometers (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.

A rescue worker who rushed to the site of the blast told The Associated Press that 46 bodies, including six children, had been recovered by Sunday evening and taken for cremation.

The rescuer, who spoke on condition of anonymity for security reasons, said 74 injured people had been transported to the township hospital and rescue operations were continuing.