KYIV, Ukraine (Reuters) -Russian missile strikes killed three people in the southern Ukrainian city of Kherson while fighting raged in the eastern Donetsk region where Russia again shelled the key town of Vuhledar, Ukrainian officials said. President Volodymyr Zelenskiy said Ukraine was facing a difficult situation in Donetsk and needed faster weapons supplies and new types of weaponry, just days after allies agreed to provide Kyiv with heavy battle tanks. “The situation is very tough. Bakhmut, Vuhledar and other sectors in Donetsk region – there are constant Russian attacks,” Zelenskiy said i…