Yulia Tymoshenko daughter speaks out
3 May 2012 Last updated at 13:21 BST
Germany says the EU is prepared to delay a trade agreement with Ukraine, ratcheting up the pressure over the treatment of jailed opposition leader Yulia Tymoshenko.
But Poland has warned against any boycott of Euro 2012, which Ukraine and Poland will co-host next month.
Several European leaders have already cancelled visits to Ukraine.
Daniel Sandford spoke to Yulia Tymoshenko's daughter Eugenia.