Government publishes secret Operation Yellowhammer plans for a no-deal Brexit - live updates - Wales Online: 'Low-income groups will be disproportionately affected by any price rises in food and fuel'
Disruption at ports will last three months before it starts to improve
Lorries could face delays of up to 2.5 days
As Brits will face immigration checks, there will be delays at airports, train stations and ports
Electricity prices will increase "significantly" to consumers and businesses
Medicines are "particularly vulnerable" to extended delays
It will be harder to prevent and control disease outbreaks
Supplies of fresh food will decrease - there is a risk of panic buying
UK nationals overseas will lose rights and access to services
Protests and counter-protests will take place across the UK - 'there may be a rise in public disorder and community tensions'
Trade with Ireland will be "severely" disrupted with "agri-food" hardest hit
There is a likelihood of clashes between fishing vessels as EU nations fishing vessels will be in UK waters
Care for the elderly services are vulnerable to rising prices and medicine shortages
The document is titled: "Operation Yellowhammer: HMG Reasonable Worst Case Planning Assumptions".