- 2 updates
Investigations have been continuing today to try and find out why a racehorse owned by the Queen and trained by Sir Michael Stoute in Newmarket tested positive for a banned substance.
In a statement the Queen's racing manager said it's thought Gold Cup winner Estimate failed a drugs test because some of her feed was contaminated.
Four more horses from different yards also failed the test.
Click below to watch a report from ITV News Anglia's Tanya Mercer
A racehorse owned by the Queen and trained by Newmarket based Sir Michael Stoute has tested positive for a banned substance.
In a statement the Queen's racing advisor says it may have been caused by contaminated feed.
Four more horses from different trainers also tested positive.
Estimate, the racehorse owned by the Queen, helped her to make sporting history as she became the first reigning monarch to win Royal Ascot's Gold Cup.