A court in military-ruled Myanmar has announced five new corruption charges against ousted leader Aung San Suu Kyi, a source familiar with the proceedings said on Friday, adding to a slew of cases against her.

Suu Kyi has been on trial since June last year and in recent weeks has been sentenced to a combined six years in detention by a court in the capital Naypyitaw, in legal proceedings derided by the international community as a...