A mum has been sentenced for killing her six-year-old son after hearing "demonic voices". Karolina Zurawska, 42, previously pleaded guilty to the manslaughter by reason of diminished responsibility of Alexander Zurawski. Alexander was found dead at a property in the Gendros area of Swansea on 29 August last year. His mother was found next to him with a handsaw at her side. At Swansea Crown Court on Friday, the judge also sentenced Zurawska for the attempted murder of her 67-year-old father, Krzysztof Siwi, earlier the same day. She was handed an indefinite hospital order. The manslaughter charge was accepted by the prosecution, with three psychiatric experts concluding Zurawska had been suffering from a "psychotic episode" at the time. It affected her mental state so greatly that she was unable to understand what she was doing, the court heard. Judge Paul Thomas KC told her there was "strong and compelling evidence" she was acting in an "uncharacteristic manner", but no one could have foreseen what would happen before that day. Zurawska had hugged her father, told him she loved him, before "launching three attacks on him" intending to kill him, the judge said. The court heard Zurawska had previously been the "best mother" to her son, who was recovering from a brain tumour which left him partially sighted and requiring a cane to walk. The judge said he did not believe harming Alexander would have entered the defendant's mind if she had not been mentally unwell. "You were suffering from the delusion of hearing voices, you believe that you were being instructed by a demonic force," he said. "You are not a wicked mother, far from it." He said he "entirely agreed" with the psychiatrists that Zurawska needed indefinite hospital treatment. The judge added: "I cannot end without mentioning Alexander, his all too brief life was one of bravely battling medical issues," he said. "It was a life filled with love. I know that those that knew him well will never forget him, nor ever stop loving him." Get Sky News on WhatsApp Follow our channel and never miss an update. Tap here to follow Be the first to get Breaking News Install the Sky News app for free In a tribute released after his death, Alexander's family said he was a "very kind child" who was "very clever and very mature for his age". "Alexander was always well behaved and never naughty," the statement added. "He was amazing." This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version. You can receive breaking news alerts on a smartphone or tablet via the Sky News app. You can also follow us on WhatsApp and subscribe to our YouTube channel to keep up with the latest news.