Ukraine behind new pipeline explosion in Siberia that supplies Russian military-industrial complex, source claims * Russian troops tasked to create 10-kilometer buffer zone in Dnipropetrovsk Oblast, Ukraine's spy chief says * Ukrainian drone strikes reported at Russian MiG plant,

Ukrainian drone and shelling attacks killed three people in Russia on Friday, while Russian bombardments on east Ukraine forced the evacuation of a maternity centre in Kharkiv and wounded nine.

Ukraine said it struck a Russian air base on Saturday, while Russia continued to attack Ukraine with hundreds of drones overnight as part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.