Moscow has been rocked by a huge explosion - with a ' Ukrainian drone' shot down over the Russian capital. Fragments fell on an exposition centre after it was brought down around 4am local time by the air force and there were no injuries, the Russian Defence Ministry said. Mayor Sergei Sobyanin said some of the fragments fell on the grounds of the Expocentre, an exhibition complex adjacent to the Moscow City commercial and office complex that was hit twice by drones in the past month. The area is about 4 kilometres (2.5 miles) west of the Kremlin. The defence ministry called the latest incident "another terrorist attack by the Kyiv regime". Video footage published by Russian media outlets shows thick smoke rising next to skyscrapers in the city. Did you witness this incident? Let us know at webnews@mirror.co.uk Ukrainian prisoners of war 'held captive and tortured' inside Russian prison The Russian air force shot down the drone at around 4am local time on Friday ( Image: Social media/east2west news) A resident named Maria told Metro : "We live in the tower opposite, on the 68th floor. We heard a bang and saw a flash. At first we thought it had hit the Federation Tower [skyscraper], but it turned out to be the Expocentre. We could see a column of smoke from our windows." Another said: "We were sitting on the embankment at the time – we didn’t see the drone itself, but we heard a very loud noise, then smoke was billowing from the other side." A third resident said: ‘My windows overlooking [the strike] were open. I felt a blast wave – it became hot right in my flat. I’m in shock." Russia ’s defence ministry said: "At about 4am Moscow time, the Kyiv regime launched another terrorist attack using an unmanned aerial vehicle on objects located in Moscow and the Moscow region." We'll be bringing you the very latest updates, pictures and video on this breaking news story. Please check back regularly for updates on this developing story HERE . Get email updates on the day’s biggest stories straight to your inbox by signing up for our newsletters . Get all the big headlines, pictures, analysis, opinion and video on the stories that matter to you by following The Mirror every time you see our name. Join The Mirror’s WhatsApp Community - CLICK HERE Follow The Mirror on Google News - CLICK HERE and click the star Follow The Mirror on Apple News - CLICK HERE available on Apple devices Follow The Mirror on Flipboard - CLICK HERE and click follow You can sign up for Twitter alerts for breaking news here @MirrorBreaking_ and follow us @DailyMirror , for all the latest updates. Keep up-to-date with your must-see news, features, videos and pictures throughout the day by following us on Facebook at facebook.com/dailymirror See all our social accounts you can follow here: mirror.co.uk/social