Explosions heard, black plumes of smoke seen just east of Mariupol Port in Ukraine – RTRS witness
Mariupol is where the Ukrainian army is digging in after getting routed Novoazovsk.
Mariupol is the main Ukrainian port in the south eastern part of the country and has a population of 500,000.
It would be quite a provocation to attack Mariupol on the same day as the NATO Summit.
Update: There is now talk of fighting North of the city and images of vehicles in flames are beginning to appear on twitter.