Senator Reynolds was due to address the National Press Club today, where she was expected to face questions about her handling of sexual allegations made by her former staffer, Brittany Higgins.
In a statement, Senator Reynolds said she was taking medical leave on the advice of her cardiologist, and that it related to a pre-existing medical condition.
The statement said Prime Minister Scott Morrison had phoned Senator Reynolds to “express his concern and sympathy”.
Sources have told the ABC that Mr Morrison talked with Senator Reynolds’s cardiologist to get an update on her condition.
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