Resolute Support, the NATO-led mission to Afghanistan, announced three USA service members were killed by an improvised explosive device on Tuesday.
Interested in Afghanistan? Add Afghanistan as an interest to stay up to date on the latest Afghanistan news, video, and analysis from ABC News. "One American contractor was also wounded", the NATO-led Resolute Support Mission said in a statement.
"We hope the global leaders accept our demands and put pressure on the U.S.to withdraw all foreign forces from Afghanistan", said a Taliban member.
The wounded were evacuated to receive medical care.
No other details about the deadly incident were available.
At the same time, the Khaama Press reported that at least six services of the U.S. Military were killed or wounded in an explosion triggered by an Improvised Explosive Device (IED) attack in southern Ghazni province of Afghanistan.
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An initial review showed the soldier was "likely accidentally shot by our Afghan partner force", a North Atlantic Treaty Organisation statement said on Tuesday, adding that the "tragic" incident occurred as they engaged in a battle with Al Qaeda militants.
The military later said that Jasso was likely killed by friendly fire from partner Afghan forces after they engaged in a "close-quarter battle" during an assault on one of the multiple barricaded al-Qaeda shooters.
The city was overrun by a large Taliban force earlier this year before being driven off by Afghan and USA forces after days of heavy fighting. Brent Taylor of the Utah National Guard was killed in an "insider attack" by a rogue Afghan commando he was training in Kabul.
This is the second attack in a month targeting USA forces in the region.
A separate counterterrorism mission known as Freedom's Sentinel also is underway, with U.S. Special Operations troops often partnering with Afghan commandos to target the Islamic State and, occasionally, al-Qaeda. While in Afghanistan, CBS News joined USA troops in an operation to clear an area of ISIS fighters.