Ukraine officials say infrastructure damaged as Russia strikes Zaporizhzhia on war anniversary.

Ukraine officials say infrastructure damaged as Russia strikes Zaporizhzhia on war anniversary.

Ukraine officials say infrastructure damaged as Russia strikes Zaporizhzhia on war anniversary.

Ukraine officials say infrastructure damaged as Russia strikes Zaporizhzhia on war anniversary.

On the war's fourth anniversary, Russia occupies 20 percent of Ukraine's territory, but the front line shifts slowly.

Ukraine officials say infrastructure damaged as Russia strikes Zaporizhzhia on war anniversary.

Ukraine officials say infrastructure damaged as Russia strikes Zaporizhzhia on war anniversary.

Events were held across Ukraine to mark four years since Russia launched its full-scale invasion.