The head of the European Commission has visited Ukraine and called the attack on Kramatorsk appalling. EU Commission President Ursula von der Leyen met Ukrainian President Volodymyr Zelenskyy in Kyiv. She promised to speed up the process of Ukraine joining the European Union after visiting mass graves in the town of Bucha. Al Jazeera's @Resul Serdar reports from Kyiv, Ukraine. - Subscribe to our channel: http://aje.io/AJSubscribe - Follow us on Twitter: https://twitter.com/AJEnglish - Find us on Facebook: https://www.facebook.com/aljazeera - Check our website: https://www.aljazeera.com/ #AlJazeeraEnglish #Ukraine #Russia #EuropeanCommission