A mentally ill man who stabbed his pregnant sister in the back because she was "carrying a Dublin baby" has been found not guilty of attempted murder by reason of insanity.

Daniel O'Connell (33) did not react as the jury delivered a unanimous verdict at the Central Criminal Court.

Mr O'Connell, who has Asperger's syndrome, had developed an "unnatural, almost pathological dislike" of Dublin and its people when he decided he had to kill his sister Olivia O'Connell (42). He went to her home in the south of the city, where he set upon her, stabbing her four times before she managed to wrestle the knife off him and escape.

Ms O'Connell, who was being treated for cancer at the time, survived and her baby was born healthy.

Her brother, of Rosemount, Newpark, Co Kilkenny, pleaded not guilty to attempting to murder her at Scholarstown Park, Knocklyon, on April 25, 2016.

Mr O'Connell, dressed in a grey open-neck shirt and navy jeans, looked straight at the jury as the verdict was read out.

He was committed to the Central Mental Hospital.