Clashes break out with police as several thousand protesters, including entrepreneurs and small businesses owners, gather on Maidan (Independence) Square in central Kiev to rally against recently announced virus measures.

Boston Dynamics robotic dog known as 'Spot' designed to detect radiation, was spotted working at Chernobyl’s nuclear reactor number four, as the State Agency of Ukraine on Exclusion Zone Management reported on October 23.

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Some 500 French bulldog puppies were found on a flight from Ukraine. Dozens of the dogs were severely ill and 38 were dead on arrival. Authorities said they "will determine next steps once the investigation is complete."

Controversial Georgian ex-leader Mikheil Saakashvili has been offered a top government post in Ukraine, prompting anger in Tbilisi. Talking to DW, Saakashvili warned a collapse in Ukraine would threaten all of Europe.

Ukraine asked Western powers to share data to help determine whether it was an Iranian missile that caused a plane crash earlier this week. Germany's foreign minister is calling for "the greatest possible transparency."

Ukraine and Russia-backed separatists in the country's war-torn east exchanged 200 prisoners, swapping detained fighters for civilians and servicemen held captive in some cases for years in two breakaway regions.

The Ukrainian government has exchanged 200 prisoners with Russian-backed separatists in a pre-planned exchange. The swap may indicate the start of a better working relationship between Russia and Ukraine.

Ukraine's Naftogaz and Russia's Gazprom have signed a deal that will keep natural gas flowing to Western Europe. The accord builds on a number of diplomatic steps this month between Moscow and Kyiv.

Sergey Lavrov discussed a host of issues with Donald Trump and Secretary of State Mike Pompeo, including arms control and Ukraine. Lavrov repeated his denial that Russia intervened in the US presidential election.

Marie Yovanovitch testified she felt a "big threat" as she was removed from the post of US ambassador to Ukraine. President Trump tweeted about the diplomat during the impeachment hearing, sparking cries of intimidation.

An army veteran and a foreign service officer who overheard Trump's call to Ukraine's President Zelenskiy gave their testimony to Congress. Lt. Col. Alexander Vindman said there was "no doubt" what Trump was asking for.