Let me, on behalf of myself and the European Commission, say that I was deeply saddened to hear the news of the death of Baroness Thatcher.
She was without doubt a great stateswoman, the first female Prime Minister of her country, and a circumspect yet engaged player in the European Union.
She will be remembered for both her contributions to and her reserves about our common project.
She signed the Single European Act and helped bring about the Single Market.
She was a leading player in bringing into the European family the Central and Eastern European countries which were formerly behind the Iron Curtain.
As you remember, Britain under Mrs Thatcher's leadership was very supportive of the enlargement of the European Union.
Her legacy has done much to shape the United Kingdom as we know it today, including the special role of the United Kingdom in the European Union that endures to this day.
I would like to convey my deepest regrets to the Government and people of the United Kingdom.
More top news
Higher food and petrol prices are expected to send inflation to its highest level in 28 months when official figures are released later.
The Prime Minister will detail her 12-point plan on negotiating Britain's exit from the European Union during a speech on Tuesday.
Police investigating the disappearance of Victoria Cherry, who was last seen in October 2015, have found a body.