Frederik Pleitgen, who was reporting in Kramatorsk during the attack, said Russia's war in Ukraine is one of "the most dangerous" he's ever covered.
Estonia, Latvia and Lithuania border Russia have been strong supporters of Ukraine in its defense of Russia's invasion.
Ukraine’s anti-corruption drive was expected to be on the agenda of the talks.
Abbas Gallyamov said his former boss Putin will be particularly vulnerable to a takeover in the next year.
President Joe Biden is planning to send over 31 battle tanks to aid Ukraine in its war with Russia.
The German government has confirmed it will provide Ukraine with Leopard 2 battle tanks and approve requests by other countries to do the same.
The Biden administration had resisted sending the tanks, citing extensive and complex maintenance and logistical challenges with the high-tech vehicles.
The luxury “Tango” vessel was seized in Spain last year by the U.S. government.
"The American is suspected of collecting intelligence information... directed against the security of the Russian Federation," said the FSB security agency.
There was no immediate word on whether the crash, which was near a kindergarten, was an accident or related to the war.