Ukraine retakes territory in Kharkiv region as Russian front crumbles

Ukrainian forces have seized an expanding area of previously Russian-held territory in the east in a "very sharp and rapid" advance, a Russian-installed regional official said on Friday, in a breakthrough that may mark a turning point in the war.

After keeping silent for a day, Russia effectively acknowledged a section of its frontline had crumbled southeast of Ukraine's second-largest city Kharkiv.

"The enemy is being delayed as much as possible, but several settlements have already come under the control of Ukrainian armed formations," Vitaly Ganchev, head of the Russian-backed administration in the Kharkiv region, said on state television.