On Wednesday, Ukraine received the remains of 1,212 soldiers and handed over 27 dead bodies to Moscow in return.
Mr Zelensky urged the U.S., Europe “and others around the world who called for an end to the war’’ to act.
“We’re working on a new package of sanctions,” Ms von der Leyen said, arriving at a meeting of European leaders in Tirana.
The arrests followed a series of preventive and awareness-raising operations carried out across Russia.
Russia and the United States have so far bypassed European countries in negotiations over a possible end to the war in Ukraine.
Moscow warned that such a move could lead to a direct clash between Russia and NATO.
Chinese state television reported that Mr. Putin told Mr. Xi that Russia was committed to eliminating the causes of the “Russian-Ukrainian conflict.”
A ceasefire in Ukraine without eliminating the root causes of the conflict threatens to have grave consequences, says Russia.
Mr Fogel, 63, was convicted of smuggling 17 grams of marijuana in Russia in 2021 and was subsequently jailed for 14 years.
By introducing another non-Western currency, Moscow hopes to be less affected by the sanctions imposed on Russia by the West over its war in Ukraine.