The health condition of Shiv Sena chief Bal Thackeray turned very critical late Wednesday night, report sources.
"Thackeray is serious, but stable. A team of doctors is continuously monitoring him," a party official, who met him in the evening, told IANS, preferring anonymity.
There were reports that the 86-year-old leader had been put on a ventilator, but party officials denied them.
The Sena chief's nephew Raj Thackeray visited him in the afternoon at 'Matoshri', the clan's home in Mumbai's Bandra east.