ChennaiDMK chief M Karunanidhi’s health is improving after a temporary setback, said his family and Chennai’s Kauvery Hospital, where the veteran leader is being treated, on Sunday night.“There has been an unexpected setback in the health of Karunanidhi. But after critical medical care, he is normalising. A team of doctors is continuously monitoring and treating him. I appeal to the cadres to not indulge in any violence, not obstruct police and not disturb public,” said MK Stalin, Karunanidhi’s son and political heir.“Kalaignar is fine and we are going home,” said MK Azhagiri, Karunanidhi’s elder son. Daughter M Kanimozhi, too, told media that her father is fine.Stalin, Azhagiri, Kanimozhi and another daughter Selvi, returned to the 94-year-old leader’s home in Chennai’s Gopalapuram after gathering at the private hospital on Sunday evening. Karunanidhi’s “vital signs are normalising” after a “transient setback” in his condition, and he is being closely monitored, the hospital said in a statement a little before 10 pm on Sunday.#WATCH: Outside visuals of Chennai&#39;s Kauvery hospital, where DMK Chief M Karunanidhi is admitted. Police lathi charge crowd gathered outside. #TamilNadu pic.twitter.com/3fkR0LFlb1&mdash; ANI (@ANI) July 29, 2018Chief minister E Palaniswamy, who was in Coimbatore for an event, is delaying his return to Chennai on the police’s advice, sources told Hindustan Times. Emotions are running high outside the hospital as crowds have gathered in hundreds, waiting in the rain and praying for Karunanidhi’s recovery.Heavy security has been deployed at the hospital and police had to cane the crowd briefly in an attempt to disperse supporters and DMK workers, who shouted slogans in Karunanidhi’s praise. Barricades have been set up along the 2-km stretch from the hospital to Gopalapuram, causing traffic jams.Read | Don’t believe in rumours on Karunanidhi: DMK leader A Raja tells crowd outside hospital Senior politicians, including Congress party’s P Chidambaram and TMC’s Derek O’Brien, visited the veteran politician on Sunday. Vice president M Venkaiah Naidu also paid a visit earlier in the day to inquire about the DMK chief’s health and said he was told by doctors that Karunanidhi’s condition was stable. “Visited Kaveri Hospital and met former Chief Minister Thiru Kalaignar Karunanidhi. Met his family members and doctors and enquired about his health. Doctors said he is stable. Wish him a speedy recovery,” Naidu tweeted.The DMK president, who is being treated for fever due to urinary tract infection, was admitted to the hospital’s Intensive Care Unit (ICU) on Saturday following a dip in his blood pressure.