 Bodrog was sent to Reni near the mouth of the Danube to protect withdrawing Austro @-@ Hungarian troops , arriving there on 1 October . She then sailed upstream , reaching Rustschuk on 11 October , and Giurgiu two days later . On 14 October , she was deployed at Lom . She was the last Austro @-@ Hungarian monitor to withdraw towards Budapest and was the only one that failed to reach the city . On 31 October 1918 , Bodrog collided with a sand bank while navigating through heavy fog near Vinča . She was later captured by the Serbian Army . 
