A member of the 43rd Georgian Light Infantry Battalion moves into position during a June 10, 2015, joint force protection mission with USA forces outside Bagram Air Field in central Afghanistan.
The attack occurred at Camp Shaheen, which serves as the headquarters for the Afghan Army's 209th Corps in Mazar-i-Sharif.
"At this time, we can confirm there are no USA or NATO Resolute Support fatalities", the mission said in a statement.
"We are aware of an incident", the office said in a statement. A statement on the Resolute Support Twitter feed Saturday says the seven were wounded when an Afghan army soldier opened fire.
Afghan officials said the perpetrator of the June 10 attack was also an Afghan special forces soldier.
The incident took place in the restive Achin district of the eastern Nangarhar province, where the USA and the Afghan forces are engaged in an intensive operation against the Daesh militants. The coalition source also said no members of the United States military were killed.
More than USA 2,000 troops have died from both combat and noncombat causes in the country since 2001.
Saturday's attack marks at least the second violent incident this month involving American personnel embedded with Afghan security forces.
At least one Afghan soldier was killed and several American soldiers were wounded in an incident at a base in northern Afghanistan on Saturday, a USA military official said.
The attackers, some dressed in Afghan military uniforms, managed to pass through two checkpoints in military vehicles before being stopped, after which they opened fire on the busy compound.
President Trump recently gave James Mattis, the secretary of defense, the authority to increase USA troop levels in the country - and "right now, this new troop request is being worked by the commander in Afghanistan, the National Security Council under H.R. McMaster and senior leaders at the Pentagon", NPR's Tom Bowman told All Things Considered. "More information will be provided as it becomes available". Mattis told lawmakers during several hearings this week that he would have a strategy on the way forward in Afghanistan by mid-July.
The injured personals have been evacuated for medical treatment.