An official inquiry set up after areas of the British countryside were inadvertently sown with GM-contaminated oil seed rape, has failed to discover the source of the contamination. In May 2000 it was discovered that hundreds of British farmers had sown thousands of acres with GM-contaminated seed imported from Canada. The GM seed - which was also planted in a number of other European countries - was not approved by the Europe Union for release into the environment. The crops were eventually destroyed, and Advanta, the firm that sold the seed, agreed to compensate farmers.