The 68-year-old AIADMK chief was taken to Apollo Hospitals here late last night and her condition is stated to be "stable" now, the hospital said, adding she is "under observation".

"The honourable chief minister of Tamil Nadu was admitted to Apollo Hospitals, Chennai with fever and dehydration," the hospital's Chief Operating Officer Subbiah Viswanathan said in a release circulated to media by the state government in the wee hours today.

He said the chief minister's condition is now stable and under observation.