By Betsy Klein, AnneClaire Stapleton and Paula Newton

CNN

WASHINGTON (CNN) -- Former President Jimmy Carter became dehydrated and was admitted to a hospital in Winnipeg, Canada, on Thursday.

Habitat for Humanity CEO Jonathan Reckford said in a statement that Carter, 92, grew dehydrated after "working in the hot sun." He added that the 39th president is "okay."

Winnipeg Regional Health Authority spokesperson Anne Bennett told CNN Carter was admitted to St. Boniface Hospital. Carter is still receiving treatment but an update on his condition will be released shortly from the hospital or the Carter Center, Bennett said.

"President Carter was dehydrated working in the hot sun. President Carter told us he is okay and is being taken offsite for observation. He encourages everyone to stay hydrated and keep building," Reckford said.

He added, "He has asked us to continue with our day."

Canada's Global News reported the former president said "I'm tired" and sat down before he was taken to the hospital.

Carter and former first lady Rosalynn Carter are in Winnipeg, where the weather is sunny and in the high 60s, working on their annual Habitat for Humanity "Carter Work Project." They are working with the organization to build 150 homes this week. The Carters were pictured earlier Thursday morning in hard hats with toolbelts around their waists.

"Habitat for Humanity is the best way I've found in my life to put my Christian faith into action," President Carter told volunteers Thursday, according to a tweet from Reckford.