Reports indicate that Kostajnia was abandoned without a fight. however, a Bosnian policeman that had been guarding the bridge said that Serbian militiamen from the 7th Banja Division had been in the town earlier in the day and had hung a Yugoslav flag over the abandoned Croatian police station.
see Tim Judah. "Croats retreat as Serbs press their offensive." Times [London, England] 2 Aug. 1991: 11. The Times Digital Archive. Web. 27 Apr. 2018.