By Iain MacInnes
By Marc Ellison
Data journalist, BBC Scotland
- Copyright: Reuters
Nicola Sturgeon moves the island of Barra and Vatersay, which is connected by a causeway, from level three to level four from midnight tonight following a significant outbreak.
Covid-19 cases on the island increased to 39 on Monday with NHS Western Isles describing the situation as "serious" and "escalating".
Ms Sturgeon says more than 10% of Barra’s population has been required to self-isolate and adds that there is a significant concern that without additional measures, the outbreak could spread more widely across the Western Isles.
She says there is also concern about the potential impact on care home and clinical services.