THE HAGUE, Netherlands (AP) — The United Nations’ highest court on Monday banned Australia from making any use of documents it seized from a lawyer working for East Timor in an arbitration case over a multibillion-dollar oil and gas deal between the two nations.

The International Court of Justice also ordered Canberra not to “interfere in any way in communications” between East Timor and its legal advisers in the arbitration or future negotiations on a maritime boundary between resources-rich Australia and its tiny, impoverished northern neighbor.