Kachin Independence Military (Kia), one of the rebar groups opposed the coup, attacked the military rumor in the town of Ngoc Bich Hkamti.
The other gunmen attacked a military station in Hkamti in Sagaing, Northwest Myanmar, this morning.
The other spokesman Naw Bu said he knew about the attack, but could not provide detailed information.
"The fighting continues. I can still hear a gunfire," a resident said.
Smoke rises from the tri fight between the Independent of Kachin (Kia) and Myanmar army in Hkamti town today.
Attacked rumors are located near the Mining Joint Venture of Myanmar Economic Holdings Related Joint Venture, owned by military.
The attack marked the new territory into the new territory at the time of Myanmar in chaos since the military powered after the coup on February 1.
Mizzima news agency said the army used fighters in other attacks in HKAMTI, far away town rich in jade and gold, about 50 km from the border with India.
The military repeatedly throw the position of the other in recent weeks and also clashed with rebel groups in the east and western Myanmar.
According to the Association to support political prisoners, at least 812 people died since the coup in Mynmar.