Thousands of supporters gathered outside Chennai's Kauvery hospital on Sunday evening as ailing DMK chief M Karunanidhi's condition took a turn for the worse. The veteran leader's family, too, had reached the hospital and Chief Minister E Palaniswami cut short his tour to Salem and headed for Chennai. In a late night statement, the hospital said his health stabilised. Calling it a "transient setback", the hospital said Mr Karunanidhi was improving.