A massacre of Croat civilians was committed by local Serb rebels on 27 July 1941 in village Trubar in Drvar municipality Independent State of Croatia (modern-day Bosnia and Herzegovina).

[3] It was a coordinated effort from both sides of the Una River in the territory of southeastern Lika and southwestern Bosanska.

The massacre occurred in village of Trubar, 18 km from Drvar, where local Serb rebels (either Chetnik or Yugoslav Partisan) stopped a train at Vaganj station, separating and killing the pilgrims who were returning from Knin on 27 July.

Murdered pilgrims, among whom was a German Roman Catholic priest, Waldemar Maximilian Nestor, were thrown into the pit of Golubnjača.

[7] One of the witnesses of the massacre was a Partisan, Stevo Babić, who wrote that a group of rebels [clarification needed] had executed train passengers at Golubnjača.