(Reuters) -Traffic on the Don River in the Kalachevsky district of Russia's Volgograd region was temporarily restricted to eliminate wreckage from a "massive" Ukrainian drone attack, the regional governor's administration said on Friday.
"Sappers are at work," Volgograd Governor Andrei Bocharov was cited as saying in a post on the Telegram messaging app by the region's administration.
He added that there were no injuries as a result of the attack.
It was not immediately clear whether the bridge on the Don River, Europe's fifth-longest, was damaged.
The Russian defence ministry said in a post on Telegram that its air defence units destroyed 39 Ukrainian drones overnight over the Russian territory and the Crimean Peninsula, including 13 over the Volgograd region.
Volgograd airport was closed for more than three hours before flights were restored just before 7 a.m. local time (0400 GMT), Russia's civil aviation authority Rosaviatsia said on Telegram.
(Reporting by Lidia Kelly in Warsaw; Editing by Muralikumar Anantharaman and Jacqueline Wong)
