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.

(China Daily/Agencies March 4, 2009)