The head of Godolphin has ordered one of his stables in Newmarket to be locked down and a full round of blood tests carried out on all horses after one of his trainers was charged in a major doping scandal.

Sheik Mohammed bin Rashid al Maktoum, who is also the ruler of Dubai, says he is "appalled and angered" that samples from 11 of his horses at Moulton Paddocks were found to contain traces of anabolic steroids.

Mahmood Al Zarooni was charged Wednesday with violating multiple rules related to banned substances. He will appear before a disciplinary panel on Thursday and could be stripped of his license.

Sheik Mohammed says he wants "a full round of blood samples, and dope testing done on every single horse on that premises."