Twenty people died when a truck carrying scores of people back from a village fair in central Mali plunged into a river after its brakes failed, the government said on Thursday.The accident occurred late on Monday in the central Saye region, a statement said."Sixty-three people were rescued and searches are continuing," it said. "According to preliminary studies, a technical fault linked to the braking system was at the root of this dramatic accident."It reminded transporters to follow the law and not mix passengers with merchandise or livestock being transported.Accidents are common in Mali where bad roads and poorly kept vehicles abound with scant respect for traffic rules.* Sign up to News24's top Africa news in your inbox: SUBSCRIBE TO THE HELLO AFRICA NEWSLETTERFOLLOW News24 Africa on Twitter and Facebook.