A United Nations employee whose sexual harassment claims led former refugee chief Ruud Lubbers to resign now alleges that she was the target of retaliation, and plans to sue him and Secretary-General Kofi Annan, she said Wednesday.

Cynthia Brzak, 52, said she hopes her case against Annan and Lubbers, the former prime minister of the Netherlands, will set a precedent example for whistleblowers in the U.N. who believe its internal justice system doesn’t protect them against punishment.