Reuters
(Adds details of situation in Mariupol, fighting) By Marko Djurica and Abdelaziz Boumzar BUCHA, Ukraine (Reuters) – Global outrage spread on Monday at civilian killings in north Ukraine where a mass grave and tied bodies shot at close range were found in a town taken back from Russian troops, as Moscow shifted the focus of the fighting elsewhere. The deaths in Bucha, outside Kyiv, looked set to galvanise the United States and Europe into additional sanctions against Moscow, possibly including some restrictions on the billions of dollars in energy that Europe still imports from Russia. The disc…