<span style="color: #222222;">European Union judicial coordination agency Eurojust says it has helped Poland, Lithuania and Ukraine to establish a joint investigation team to probe war crimes, crimes against humanity and other crimes committed in Ukraine.<br />''<br />''The Hague-based agency said today that the three nations signed an agreement on Friday establishing the team. Eurojust says it provided legal and technical support.<br />''<br />''Eurojust adds that the team will help the three nations cooperate with International Criminal Court prosecution office, which also has opened an investigation in Ukraine.<br />''<br />''Within the first month of Russia's military operation against Ukraine, Polish prosecutors said they had collected some 300 witness testimonies from refugees pouring over the border.</span><br />