Heavy clashes between Myanmar government forces and some ethnic armed groups occurred near the 105th Mile Muse Border Trade Zone in Shan State north Sunday morning, resulting in some casualties, local sources said.

The three-hour exchange of fire, said to have involved the Kachin Independence Army (KIA) and the Ta-ang National Liberation Army (TNLA), began at 06:30 a.m. local time.

The police station was attacked with a key bridge being destroyed.

With some cargo trucks also damaged, the main road leading to the border trade zone has been reportedly closed.