In this Jan. 18, 2009 file photo, Robin Williams arrives at the premiere of 'World's Greatest Dad' at the Sundance Film Festival in Park City, Utah.　[Agencies]

NEW YORK – Robin Williams is canceling several performances in Florida of his one-man comedy show, "Weapons of Self-Destruction," after recently experiencing shortness of breath.

The comedian says in a press release that doctors are evaluating him and recommended a week of rest. Williams had been scheduled to perform Wednesday and Thursday at the Seminole Hard Rock Hotel & Casino in Hollywood, Florida; Friday at the UFC Arena in Orlando; and Saturday at the Sundome in Tampa.

The four canceled shows will be rescheduled, and tickets for those performances will be honored when the new dates are announced.

The 57-year-old actor will continue his 80-city comedy tour on Monday with a show in Jacksonville.