Russians destroyed the bridge between Severodonetsk and Lysychansk in Ukraine's Luhansk region, according to Serhiy Hayday, the head of the regional military administration, in a post on his Telegram page on Saturday.
Hayday said this will "greatly complicate the evacuation and delivery of humanitarian aid," but right now, "there is a connection between the cities."
This is the second time it happened, Hayday added.
According to Hayday, in July 2014, during the liberation of Lysychansk, militants blew up the span of the bridge during the enemy retreat. 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 in Ukraine's Luhansk region.