Myanmar's government has reported fierce fighting in the western state of Rakhine, where the army has been conducting counterinsurgency operations since nine police officers were killed in attacks on posts along the border with Bangladesh last month.
An Information Ministry statement said government troops were ambushed Saturday morning by about 60 attackers armed with guns, knives and spears.
It said one soldier and at least six attackers died, adding that an army officer died in a later battle against 500 armed men, which ended when two air force helicopters joined the fight.
The attackers weren't identified, but the army has aligned with Rakhine Buddhists against Muslims of the Rohingya ethnic minority since violent intercommunal conflict erupted in 2012.
Human rights groups have accused government forces of abuses against Rohingya civilians.