Donald Trump's tariffs have triggered an explosion in cargo theft across the US as organised gangs target truck drivers. Drugmakers, clothes manufacturers and electronics companies are grappling with "unprecedented" numbers of crimes, which have surged by a third year-on-year, according to the boss of a supply chain security company. David Warrick, executive vice president of Overhaul, said: "I've been in supply chains for 30 years and I've never seen this before." The rise is a "side-effect" of Mr Trump's sweeping trade tariffs on US goods imports, which have increased the value of shipments and pushed companies to stockpile goods, Mr Warrick said. Firms raced to front-load imports before Mr Trump's fees hit, meaning large volumes of goods have become sitting targets waiting in distribution centres and warehouses. Mr Warrick said: "This isn't opportunistic theft, this is organised crime. It is cartels and mobs who have infiltrated the supply chains."