Lawyers for Myanmar’s military rulers on Monday sought to have a case at the United Nations’ top court that accuses the Southeast Asian nation of genocide against the Rohingya ethnic minority dismissed for lack of jurisdiction.

Public hearings at the International Court of Justice went ahead amid questions about who should represent Myanmar in the aftermath of the military take-over of the country last year.

A shadow administration known as the National Unity Government made up of representatives including elected lawmakers who were prevented from taking their seats by the military takeover had argued that it should be representing Myanmar in court.

But, instead, it was the administration installed by the military. The legal team was led by Ko Ko Hlaing, the minister for international cooperation. He replaced pro-democracy icon Aung San Suu Kyi, who led the country’s legal team at earlier hearings in the case in 2019. She now is in prison after being convicted on what her supporters call trumped-up charges.

As the hearing started, the court’s president, U.S. Judge Joan Donoghue, noted “that the parties to a contentious case before the court are states, not particular governments.”

A Myanmar rights group questioned the court’s decision to allow the military regime to represent Myanmar, which was formerly known as Burma.