The latest five minute news bulletin from BBC World Service.

Justin Rowlatt speaks to Estelle Brachlianoff, Veolia CEO, about the corporation.

In Yemen, fighting is intensifying around the Yemeni city of Taiz, where government forces are trying to halt a new advance by Houthi fighters closing in on the city. We have a frontline report from the BBC's international investigations correspondent. Also on the programme: investigations continue into a suspected terror plot at an air force base in southern England; and a potential breakthrough in the storage of mRNA vaccines, which could revolutionise rural healthcare. (Photo: A displaced Yemeni woman, Fatma Mohammed Saleh, speaks to the BBC. Credit: Liam Weir/BBC)