An Afghan soldier opened fire at a military base in in southern Afghanistan on Sunday, injuring three U.S. soldiers before being shot dead.
NATO-led Resolute Support mission on Twitter confirmed the incident in Helmand province saying that injured soldiers were “receiving medical care.”
It offered no further details about the shooting, which is the latest so-called insider attack to target foreign troops or contractors in the country.
The exchange of fire happened at Camp Shorab air base at around 3 p.m., according to a spokesman for the Afghan military in the south, Reuters reported. The attacker was a member of Afghan special forces, the official said.
Camp Shorab is a major former U.S. and British base which is currently run by the Afghan arm.
The shooting is the first insider attack on foreign forces this year. Last May, two Romanian soldiers were killed and a third wounded after being shot by two members of Afghan police.