new store openings and products reaching shelves. its chief executive david potts told the times newspaper that more visas are needed forforeign workers. it follows measures announced by the government to reduce the pressure on supply chains, in the wake of brexit. our business correspondent katy austin reports. when you have a shortage of labour in terms of hgv drivers, those domestic drivers, it means that the goods are sitting around slightly longer at the ports waiting to be collected. there are labour shortages in other sectors too, including construction, hospitality and food production. now the boss of morrisons has said that while there are plenty of products on the shelves, underlying strain in the supply chain is affecting availability, while a lack of materials such as cement and bricks