Angus Hawley's brother has spoken of his shock after his brother, the ex-husband of Antonia Kidman, died of a suspected heart attack, age 46, in New York on Saturday. Speaking to Daily Mail Australia on Monday, David Hawley said: 'It's a real shock, he was one of the fittest men I've ever met – he's swimming everyday.' Responding to a question about whether Angus had a history of heart problems, David answered: 'No, no, not that we know of', adding: 'He's so fit, I don't understand.' Scroll down for video . 'He didn't have heart problems' Angus Hawley's brother reveals shock after ex-husband of Antonia Kidman dies from a suspected heart attack in New York after 'returning from a swim'. Angus and Antonia pictured together in 2005 at the Chuan Spa opening in the Langham Hotel . Mr Hawley, who was in New York attending a business conference at the time, collapsed after returning from a swim. 'He did go for a big swim in the morning, he trains very hard,' David said of his brother, who he described as a 'bit of a fitness fanatic' and was known to lead a healthy and active lifestyle. 'I think his body clock was round the wrong way and it just got everything round the wrong way and he's over done it.' Mr Hawley was a father to four children, Lucia, 16, Hamish, 14, James, 12, and Sybella, eight, all of whom he shared with Nicole Kidman's sister Antonia before their 2007 split. The children are reportedly set to join the family in Sydney as they rally around David's second wife Prue Fisher, who he married in Palm Beach in 2011. Sad news: Antonia Kidman's former husband Angus Hawley has died of a suspected heart attack aged 46 in New York. The pair are seen here in 2003 . Fitness fanatic: Mr Hawley's brother says he doesn't 'understand' the death of his fit and healthy brother, pictured with his wife Prue Fisher in 2011 . Led an active lifestyle: Mr Hawley, 46, is believed to have suffered a heart attack after returning from a swim. The former couple are pictured above with Antonia's parents Janelle and the late Dr. Antony Kidman . David described his brother, a business development manager at Valor Private Wealth, as 'one of the most beautiful men that I have ever known. 'He is absolutely adored by everybody, he made everybody feel like he's their best friend and that's why everybody loved him. And he loved everybody else, it's just a really emotional time.' Prue is being comforted by her family in Sydney, after they traveled from Orange in New South Wales to be by her side. She was reportedly seen at the Bondi Icebergs public pool, a place her late husband often frequented, on Sunday. Moved on: Both Antonia and Mr Hawley remarried following their divorce in 2007 - she to businessman Craig Marran (L) in 2010, and he to Sydney fashion boutique manager Prue  the following year (R) David described Prue as 'devastated' saying she's 'terrible, terrible', adding, 'it's a huge hole in our lives. 'They were absolutely devoted to each other and Prue's relationship with Angus's children was fantastic,' said David of his late brother's wife. 'His wife adores him, and he adored her, his four children, it's just so sad. It's a tragic loss to our family and to his family, it's just a nightmare. 'No matter what happens for the rest of her life, she'll still be my sister-in-law.' On Saturday another of Angus's brothers Phillip released a statement, describing his death as 'sudden' and 'very unexpected' to News.com.au. Wedding day: Antonia and Angus wed in 1996, they were together for 11 years before their divorced was finalised in 2007 . Legacy: The 46-year-old was a father to four children in Lucia, 16, Hamish, 14, James, 12, and Sybella, eight, all of whom he shared with Nicole Kidman's sister Antonia, pictured . 'There are no further details at this time as it only occurred last night, our time,' the statement read. Reports about his death have as yet been mixed, with News.com.au saying that Mr Hawley went to dinner with a friend in New York and then went into cardiac arrest. He is said to have later passed away in the ambulance on the way to hospital. Mr Hawley's death comes less than seven months after the sudden passing of Nicole and Antonia's father Dr. Antony Kidman, who also  suffered a suspected heart attack, in Singapore. Family tragedy: Mr Hawley's death comes less than seven months after the sudden passing of Nicole and Antonia's father Dr. Antony, who also suffered a heart attack, in Singapore . Both 44-years-old Antonia and her ex husband both remarried following their divorce in 2007 - she to businessman Craig Marran in 2010, and he to Sydney fashion boutique manager Prue, the following year. He has kept himself largely out of the spotlight following his split from Antonia and a battle with depression. The father of four checked himself into a Sydney rehab clinic in 2007 following a period of mental health issues. Tragic: Antonia's second husband Craig Marran accompanied her, her sister Nicole and husband Keith Urban to Dr. Antony's funeral in September last year . He told Woman's Day in 2009: 'I was depressed, out of control and full of self-loathing, and I resorted to drugs to get through it. 'I wasn't in a happy place and it was an appalling thing, but I was sick, and at least I was big enough to do something about it.' Merivale hotel founder Justin Hemmes, has paid tribute to his good friend Angus, explaining to the Daily Telegraph that the pair became friends at just four years old . Family man: Dr. Antony Kidman was visiting Antonia and her family in Singapore when he passed away . Day of mourning: Antonia's six children Lucia, Hamish, James, Sybella, Nicholas, two, and Alexander, one, attended the funeral along with Nicole's daughters Sunday Rose and Faith . Support: Keith and Craig acted as pallbearers at the funeral, as did family friends Russell Crowe and Channel Nine newsreader Peter Overton . 'He was my next door neighbour but quickly became a best friend, one I was fortunate enough to have by my side ever since,' he said, describing Mr Hawley as 'the most caring, thoughtful and loving man.' 'The most loving father to his four wonderful children and adoring wife. His family was his treasure. His kids were his life,' he continued. Mr Hawley's death is the second devastating loss the Kidman family has suffered in the past seven months, after Dr. Antony Kidman sadly collapsed and died in a Singapore hotel last September at the age of 75. Family photo: Antonia, Janelle, Dr. Antony and Nicole are seen here in 1990. Nicole said at his funeral she was 'so lucky' to be her father's daughter . Close knit: Nicole and Antonia are pictured here with their late father in 1990 . A respected Sydney psychologist, Dr. Antony was in the country visiting Antonia and his six grandchildren. Antonia, a journalist and writer, is currently based in Singapore with her second husband with whom she shares two sons, Nicholas, two, and Alexander, one. She remembered the close relationship she had with her father at his funeral last year and said they were 'similar in many ways'. New home: Antonia resides in Singapore with second husband Craig. She's pictured here with Nicole, who lives in Nashville with Keith Urban, in 2005 . 'I'm so lucky to be his daughter,' 47-year-old Nicole said, 'and that he chose my mother to make me with.' Appearing on Ellen last October, Nicole said husband Keith Urban had to carry her, sometimes literally, because she was 'so devastated' by the loss. Daily Mail Australia has contacted the Kidman family's management. Tribute: A good friend of Mr Hawley, Merivale founder Justin Hemmes has described him as 'the most caring, thoughtful and loving man'
Angus Hawley's brother said his late sibling 'didn't have heart problems' He is reported to have had a suspected heart attack in New York . Angus was a father of four children - Lucia, Hamish, James and Sybella . He had all four with Nicole Kidman's sister Antonia before their 2007 split . Both 44-year-old Antonia and Angus, 46, remarried following their divorce . Angus' death comes seven months after Dr. Antony Kidman's death . Nicole and Antonia's father also died of a heart attack in Singapore .