on a working russian tank. in battle, russia says 498 of its troops have been killed and a further 1597 injured. ukraine reports more than 2000 civilians have died so far. the international criminal court has opened a war crimes investigation into russia's invasion of ukraine after receiving requests from 39 states. a week on, one city down, many ukrainians stay and fight on, as the un says the number of refugees fleeing ukraine has now reached a million. mark lobel, bbc news. we are going to live to estonia now where the estonian defence minister is holding a news conference runs alongside ben wallace, uk defence secretary. alongside ben wallace, uk defence secreta . , ., . alongside ben wallace, uk defence secreta . ., , .,