Martin Lanigan, the husband of Sinn Féin president Mary Lou McDonald, has settled a defamation action brought against former government minister Shane Ross and his book publisher, after he received an apology in the High Court from both parties.

Mr Lanigan had alleged he was defamed by material published in Mr Ross’s 2022 biography of Ms McDonald. The book, entitled Mary Lou McDonald: A Republican Riddle, was published by Atlantic Books.