Australian citizenship crisis threatens to engulf another lawmaker

The Australian Aboriginal flag flies from a mast behind a sign outside the main entrance to the High Court of Australia building in Canberra, Australia, October 16, 2017. REUTERS/David Gray

SYDNEY (Reuters) - A citizenship crisis that has rocked Australian Prime Minister Malcolm Turnbull's government could claim another high profile lawmaker, with the president of the Senate saying he will resign from parliament if found to be a dual national.

Stephen Parry, the leader of the upper house, said late on Tuesday that he had sought clarification from British authorities about his nationality following a ruling by Australia's High Court last week that expelled five lawmakers with dual nationality from parliament.