Two NATO soldiers in Afghanistan have reportedly been killed in what has been described as an 'insider attack'. 

Two men in Afghanistan security uniform killed the NATO members early on Wednesday after opening fire on their vehicle in Helmand, as per local media reports. 

"Two Resolute Support servicemembers died early this morning when two individuals wearing Afghan National Defense and Security Forces uniforms opened fire on their vehicle at an ANDSF compound in Helmand province," a NATO statement said, according to Khaama Press

The two shooters were also killed in retaliatory fire.