Carter has been active in international diplomacy since serving as president from 1977 to 1981, particularly in intervening on behalf of Americans detained abroad and as an observer of foreign elections.
Former US President Jimmy Carter was rushed to hospital on Tuesday after developing an upset stomach during a flight to Cleveland but should continue his book-signing tour this week, the Carter Center said.
Carter, who turns 86 on Friday, has been active in international diplomacy since serving as president from 1977 to 1981, particularly in intervening on behalf of Americans detained abroad and as an observer of foreign elections.
"He is resting comfortably and is expected to resume his book tour this week," a statement from the Atlanta-based Carter Center said.
Carter had been due to appear at midday at the Joseph-Beth Booksellers in the Cleveland suburb of Lyndhurst to sign copies of his new book White House Diary but disappointed scores of people who lined up to see him.
"We don't know the date of the reschedule but will announce it when the Carter Center can give us a date," a spokesman for the bookstore said.
An ambulance was called to meet the commercial flight that Carter was on and local media reported the hospital's emergency room was cleared of non-essential personnel before he arrived.
"I'm going to make a call as soon as I get on Air Force One," President Barack Obama told reporters during a stop in Albuquerque, New Mexico.
Just last month, Carter went to North Korea to secure the release of an American convicted of illegally entering the reclusive country. He left Pyongyang with Aijalon Mahli Gomes, who was arrested in January and sentenced to eight years of hard labor.
Carter made waves this month with the publication of his latest book and accompanying interviews in which he fiercely criticized the late Senator Edward Kennedy, a fellow Democrat, for his approach to reforming the US healthcare system.
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