KYIV, Ukraine (AP) — An emboldened Russia has ramped up military offensives on two fronts in Ukraine, scattering Kyiv’s precious reserve troops and threatening to expand the fighting to a new Ukrainian region as each side seeks an advantage before the fighting season wanes in the autumn.

Kyiv time on June 30, a total of 111 combat engagements had taken place on the front line over the day, according to the General Staff of the Armed Forces of Ukraine. The heaviest fighting was reported in the Pokrovsk direction.

Russia launched its biggest aerial attack against Ukraine overnight, a Ukrainian official said Sunday, part of an escalating bombing campaign that has further dashed hopes for a breakthrough in efforts to end the 3-year-old war.