The exiled Tibetan Buddhist leader, the 14th Dalai Lama Tenzin Gyatso, remained at the Mayo Clinic in Rochester, Minn. for evaluation. He had checked into the clinic for a routine annual check-up.

A statement from the Dalai Lama's office gave no indication of any illness or his state of health. It said that the doctors had advised the Dalai Lama to rest for several weeks. The 80-year-old Nobel Peace Laureate has canceled his appearances for the month of October across the United States based on this advice, reports Raw Story.

Staring from Oct 17, the Tibetan spiritual leader had been scheduled to speak at events in Colorado, Massachusetts, Pennsylvania and Utah, reports CNN.

Mayo spokeswoman Ginger Plumbo confirmed on Sunday that the Tibetan Buddhist leader was at the Rochester clinic for a medical evaluation. She could not provide any further details, reports ABC News.

The Dalai Lama is in the U.S. at the same time as the annual U.N. General Assembly meeting in New York which is attended by heads of states from across the world. Chinese President Xi Jinping is also visiting the United States. The Chinese establishment regards the Dalai Lama as an enemy since he wielded political power in Tibet in 1950.

Tenzin Taklha, the Dalai Lama's secretary based in India, had confirmed over email last week that the Dalai Lama was going to the Mayo for an annual medical checkup, but was not ill. He had also said that the Dalai Lama was not scheduled to meet any political leaders.