Gunman dressed as Afghan policeman kills six NATO servicemen

NATO didn’t specify the nationalities of the dead. Most of the coalition forces in eastern Afghanistan are American.

If the gunman was from the border police, Monday’s shooting would be the latest attack on coalition service members by Afghan security forces. Such events were relatively rare until recently.

A pair of U.S. Marines were allegedly killed earlier this month in the southern province of Helmand by an Afghan soldier.