The comments came in response to President Donald Trump’s claim that Ukrainian President Volodymyr Zelensky had missed several opportunities to end the war.
Russia's embassy in London was responding to a report in the Times newspaper on Saturday which said British-made drones had been used for long-range strikes against Russia for the first time.
Lev Shlosberg, a senior member of Russia’s liberal Yabloko party, was sentenced to 11 years and one month for criticizing the Ukraine war.
"For autumn, I am putting forward the most far-reaching sanctions listings since the start of the war," she told the German daily newspaper, Die Welt.
In a separate interview, Zelensky said that if he were sold 10% of the US's Patriot missiles, Ukraine "will destroy all the Russians’ ballistic missiles."
Ukraine's military has sought to heap pressure on Moscow's war effort in recent months, counterattacking on parts of the 1,200-km front and striking logistics and energy infrastructure.
Ukraine agreed to not target non-Russian ships, so long as they were not sanctioned by Ukraine or carrying any Russian cargo.
Khuan Alberto Levya Garsiya, still an active member of the Ukrainian military, said his Russian captors subjected him to every imaginable form of torture during 1,183 days in captivity.
A Russian drone strike on Ranok's warehouse in the northeastern city of Kharkiv on August 1 destroyed about 8 million books, the biggest blow yet to Ukraine's publishing industry during the war.
"A decision has been made for 30,000 to 50,000 North Koreans to be deployed on the territory of Russia,” Zelensky announced on Sunday. He did not say where he got the estimate.
The discussions include an option for Ukraine to build some components for final assembly elsewhere in Europe, the sources added.
