Brazil's President Dilma Rousseff attends a breakfast with journalists at the Planalto Palace in Brasilia, Brazil, January 15, 2016. REUTERS/Adriano Machado

BRASILIA (Reuters) - Brazilian President Dilma Rousseff on Thursday condemned the practice of leaking legal testimony as a political weapon, after media reported that a pro-government senator had implicated her in a major graft probe in leaked plea bargain documents.

“Leaks that are false, selective and illegal should be rejected and have their source rigorously investigated,” Rousseff said in a statement.

Rousseff said her government was committed to defending democratic principles, fighting corruption and defending the Constitution.