Russian forces have destroyed the bridge between Severodonetsk and Lysychansk in Ukraine's Luhansk region, Serhiy Hayday, the head of the regional military administration, said on Telegram on Saturday.
(This will) greatly complicate the evacuation and delivery of humanitarian aid," Hayday said, though he added that at present there is still, "a connection between the cities."
This is the second time the bridge has been destroyed, Hayday added.
According to Hayday, militants had blown up the bridge while retreating during the liberation of Lysychansk in July 2014. Since then, communication between the cities of Severodonetsk and Lysychansk -- both of which have a population of roughly a hundred thousand people -- has been difficult. The bridge was rebuilt in 2016.
Hayday also reported 57 people were evacuated on Saturday from the Luhansk region.
"It is very hot in Severodonetsk, Lysychansk, and Belogorovka right now. The shelling does not stop even for an hour. The Russians use artillery day and night. Every life of the 57 rescued from these settlements is important to us today. They are safe and secure," Hayday said.
Earlier on Saturday, CNN reported at least six people had been killed in Russian attacks in the city of Severodonetsk.