A massive Russian retaliation across Ukraine killed 10 people and injured dozens more today. Several Russian attacks hit the Ukrainian capital Kyiv today - the first since late June.

 Here are 10 cheat sheets for this great story

1. According to the Prime Minister of Ukraine Denys Shmygal, 11 "important things" were destroyed in eight districts of Kyiv. "We will be prepared for temporary cuts in electricity, water and communications," he said on social media.

2. Ukraine's military said Russia had fired 84 naval missiles at them, two days after a major explosion destroyed a bridge linking Russia with Crimea and an attack blamed on Kyiv by Moscow.

3. Ukraine's Foreign Minister Dmytro Kuleba said the series of bombings showed that Russian President Vladimir Putin was "disillusioned with the defeat on the battlefield" after recent defeats by the Ukrainian military.

4. Former Russian President Dmitry Medvedev has warned that the scale of retaliation is only "the first step". "The first steps have been taken. There will be others," Medvedev, now deputy head of the Security Council of Russia, said on social media.

5. Ukraine has accused Moscow of using Iranian-made drones from neighboring Belarus in the deadly bombing. "The enemy used Iranian Shahed-136 drones [unmanned aerial vehicles] in an attack launched from Belarus" on the Crimean Peninsula, the Ukrainian military said in a Facebook statement, adding that nine drones had been deployed." "Destroyed" .

6. Mr. Putin said that the attack has damaged Ukraine's energy infrastructure. "This morning, on the advice of the Ministry of Defense and according to the plan of the General Staff, a large-scale attack was carried out with advanced and long-range weapons ... in the force, military command and communication facilities and Ukraine," Putin said during a meeting with his Security Council.

7. French President Emmanuel Macron said the Russian offensive across Ukraine and targeting civilians marked a "significant change" in the conduct of the war. "The deliberate Russian attack on the entire Ukrainian territory and against civilians is a major change in this type of war," Macron told reporters during a trip to the Ukrainian region. Mayenne in France.

8. In another related matter, Belarusian leader Alexander Lukashenko, an ally of Mr Putin, said that Lithuania, Poland and Ukraine were training Belarusian "radicals" for terror attacks, after announcing plans to send joint forces to Moscow.

9. Three countries, including Lithuania and Poland, which are members of the European Union and NATO (North Atlantic Treaty Organization), share a border with Belarus.

10. The EU considers Russia's bombing of civilians in Ukraine "the price of a war crime", the spokesman for the foreign policy chief, Josep Borrell, said today. Spokesman Peter Stano said, "The unfounded notion that people are in the midst of an unfortunate and horrific attack on a civilian target is certainly another escalation."