Two men attacked and stabbed a nine-year-old girl of mixed Russian and African heritage in St. Petersburg, seriously injuring her in an apparent xenophobic attack, officials said Sunday. The Saturday evening attack took place in an apartment building hallway and was the latest incident targeting foreigners or minorities in Russia's second-largest city. Aliu Tunkara, who heads a civic group for Africans in St. Petersburg, said the girl was returning home after a walk and had just entered the building when two men stabbed her. Alexander Klaus, an investigator with the city prosecutor's office, said in televised comments that during the...