JESSICA Ennis-Hill has announced her retirement from athletics.

The 30-year-old won Olympic gold in the heptathlon at London 2012 and silver at Rio 2016, and is a two-time world champion.

Ennis-Hill released a statement on her Instagram account saying it was "one of the toughest decisions" she has faced but "retiring now is right".

It read: "Amazing memories...from my first world title in Berlin 2009 to Rio 2016 I'm so fortunate to have had such an amazing career within the sport I love and this has been one of the toughest decisions I've had to make.The Herald: 23/08/15 PA File Photo of Jessica Ennis Hill celebrating winning the gold medal in the Women's Heptathlon, during day two of the IAAF World Championships at the Beijing National Stadium, China. See PA Feature WELLBEING Ennis Hill. Picture credit shoul

"But I know that retiring now is right. I've always said I want to leave my sport on a high and have no regrets and I can truly say that.

"I want to thank my family and incredible team who have spent so much of their time supporting me and enabling me to achieve my dreams. Also a huge thank you to all those people who have supported and followed my career over the years x"

British Athletics Performance Director Neil Black said: “I know it will have been incredibly difficult for Jess, but I am pleased for her that she has been able to make the decision and can now look forward to a much deserved retirement

"The entire performance team of coaches, athletes and support staff will miss her at events. Not only has she competed at the highest level, but she has been a warm and positive presence within the GB team and a great example to the younger team members.

"Her record as an athlete is phenomenal and that’s without considering the challenges of returning from pregnancy to win World gold and Olympic silver.

"I’d like to thank her not only for her contribution to the GB team over the years, but additionally for being a great person to work with, know and support.”