You may hear the news broadcasts going crazy today.
Russia has attacked numerous targets within Ukraine in retaliation of Ukraine's suicide bomber attack on a bridge in Crimea which illegally killed civilians.
The blast on Europe's longest bridge - a symbol of Russia's annexation of the peninsula from Ukraine in 2014 - killed three people, investigators say.
The victims were in a nearby car when the truck blew up, Russian officials claim.
The video below is the best illustration I have seen of the bridge attack.