Gunman opens fire in Ukraine's capital, kills several people

A gunman opened fire at a supermarket in Ukraine's capital Kyiv on Saturday, killing "several" people and wounding others, Mayor Vitali Klitschko said. The gunman, who had taken several people hostage and fired at police officers, was killed, Ukraine's Interior Minister Igor Klymenko said. The number of victims in the attack is being determined, he added.