"President Carter told us he is OK and is being taken offsite for observation", Reckford said.
The 92-year-old collapsed in Winnipeg Thursday while on a build site for the charity, which he and his wife, Rosalynn, have made a centerpiece of their post-White House work since 1984.
The former USA president kicked off the final day of the build with a devotional at 8 a.m. following an overnight stay in the hospital due to dehydration from working in the heat.
That's where 21 homes are being built by Habitat at the site of the Winnipeg Police Service's former St. James district station. On Wednesday, Carter said the build in Edmonton, Canada, was one of the best.
Carter and former first lady Rosalynn Carter are the organization's most prominent supporters, and since 1984 have built, renovated or repaired nearly 4,000 homes globally, according to the nonprofit's website. This week's project building houses in several Canadian communities is the 34th time they have pitched in on Habitat projects, lending a hand and their name to promote the work.
Former U.S. President Jimmy Carter attends a news conference in New York November 5, 2013.
Carter, whose family has a history of cancer, disclosed in August 2015 that he had been diagnosed with a form of skin cancer known as melanoma, that had spread to his brain and elsewhere and had been spotted during liver surgery.