Russia arrests 8 in bridge explosion as missile attacks in Ukraine lead to nuclear plant blackout

Russia's main domestic security agency said eight people were arrested over an explosion on a bridge that links Russia to the Crimean Peninsula.

Russia's Federal Security Service, known by the Russian acronym FSB, said it arrested five Russians and three citizens of Ukraine and Armenia in the attack on the Kerch Bridge. A truck loaded with explosives blew up while driving across the bridge Saturday, killing four people and causing sections of road to collapse.

The span opened four years after Russia annexed Crimea from Ukraine in 2014, serving as a symbol of Moscow's regional dominance as well as a crucial route for getting military supplies to Ukraine and Russian travelers to a popular vacation destination.