Sri Lanka's government has been accused of killing thousands of its own civilian citizens, war crimes, rape, torture and inhuman treatment of hundreds of thousands of refugees from its war against the Tamil Tigers.

Al Jazeera has conducted its own investigation into the conflict and spoken to Tamils who have suffered and aid workers who have remained silent until now, revealing testimonies that call into question the version of events Sri Lanka's government wants the world to believe.

Al Jazeera's Tony Birtley reports.