Former US First Lady Nancy Reagan has died aged 94

She will be buried at the Ronald Reagan Presidential Library in Simi Valley, California, next to her husband

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Nancy Reagan. Image: Alex Brandon / AP/Press Association Images

Former US First Lady Nancy Reagan has died at her home in Los Angeles, aged 94.

The cause of death was congestive heart failure, according to a statement.

She will be buried at the Ronald Reagan Presidential Library in Simi Valley, California, next to her husband, former US President Ronald Reagan. He died in June 2004.

The former B-movie actress married Reagan in 1952 when he was president of the Screen Actors Guild.

She was California's first lady from 1967-75 while her husband was governor of the state and US First Lady from 1981-89. They had two children together.

During her time in the White House, she led the "Just Say No" anti-drugs campaign.

She was fiercely protective of her husband, and became even more so following the assassination attempt against him outside a Hilton hotel in Washington DC in 1981.

Ronald and Nancy Reagan in Ballyporeen during their January 1984 visit to Ireland. Image: Eamonn Farrell/RollingNews.ie

Her consultations with an astrologer, who recommended which days were best for him to leave the White House, influenced the US president's schedule.

Her star-gazing led to clashes with her husband's chief of staff, Donald Regan, and a power struggle that ended with the latter's resignation.

President Barack Obama sent his condolences to Mrs Reagan's family, adding it was "prayerful that she and her beloved husband are together again".

Former President Jimmy Carter also paid tribute to the woman whose husband ousted him from the White House.

He said: "President Reagan has been reunited with his wife and partner but America and the Reagan family have lost a woman of grace and strength." 

Leading political figures in the United States have been paying tribute to the late former First Lady on social media.