Millions of Britons with asthma, lung conditions or hay fever have been warned that high pollen levels this weekend could put them at risk.

The Met Office is predicting high levels across every area of England and Wales today and Saturday, with medium levels in Scotland and Northern Ireland.

Pollen levels are expected to remain high in Wales through to Sunday but are forecast to drop to medium in every part of England except the South West. .

The Met Office is predicting high levels across every area of England and Wales today and Saturday.

Pollen levels are expected to remain high in Wales through to Sunday but are forecast to drop to medium in every area of England except the South West.

Dr Andy Whittamore, clinical lead for Asthma and Lung UK, said: 'When pollen levels are at their highest this can be deadly for those with lung conditions like asthma who can suffer serious symptoms and have life-threatening attacks.

'We also advise people to carry their reliever inhalers every day, especially when they are out and about enjoying the sunshine in case pollen does cause a flare-up of their symptoms.

High pollen levels could also cause misery for millions of people with hay fever, who suffer streaming noses and itchy eyes

But the NHS says there are things people can do to ease their symptoms when the pollen count is high this weekend