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By Arshad Mohammed and Alexei Anishchuk GENEVA/MOSCOW (Reuters) - The United States, Russia, Ukraine and the European Union called after crisis talks on Thursday for an immediate halt to violence in Ukraine, where Western powers believe Russia is fomenting a pro-Russian separatist movement. President Barack Obama said the meeting in Geneva between Russia and western powers was promising but that the United States and its allies were prepared to impose more sanctions on Russia if the situation fails to improve. Russian President Vladimir Putin, speaking in Moscow, accused Ukraine's leaders of committing a "grave crime" by using the army to try to quell unrest in the east of the country, and did not rule out sending in Russian troops.
The execution of an Iranian convicted of murder was halted at the very last minute in a dramatic scene this week when the mother of his victim forgave him as he stood on the gallows with the noose around his neck, according to Iranian media.