esther dingley, who was 37, was hiking near spain�*s border with france when she vanished.ame. the uk�*s biggest dairy company, arla, has told the bbc that it failed to make 25% of its deliveries to supermarkets last weekend because of a lack of lorry drivers. the firms said 600 stores did not receive deliveries. they say the ongoing shortage of drivers, alongside staff having to isolate because of covid alerts, is causing major disruption. the company�*s boss has been speaking to our business correspondent, emma simpson. this is the world�*s largest fresh milk dairy. we process over a billion litres of milk from our cooperative farmer owners a year, so you can see this is a vast operation. in fact, one in every five bottles of milk that�*s sold in the uk is made here. since the beginning of april, we have experienced driver shortages, so being able to take the products from a factory like here in aylesbury to the supermarkets, and that has now increased to such a level where we�*re not able to deliver milk to every store that would like it. can you quantify this? normally,