Former British Prime Minister Margaret Thatcher has died of a stroke, several news organizations are reporting.

The BBC said Thatcher, 87, suffered a stroke.

Thatcher was Britain's first and only female prime minister, serving from 1979 to 1990. As head of the Conservative Party and a staunch ally of President Ronald Reagan, she was called the "Iron Lady" for her political toughness.

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Inventor Lonnie Johnson stands with his Super Soaker water guns at JTEC Energy on Wednesday, Oct. 29, 2025, in Atlanta. Johnson, a former NASA engineer, is currently working on a new energy technology through his company’s JTEC device that turns thermal heat into usable energy. (Natrice Miller/AJC)