Bollywood superstar Sridevi Kapoor drowned in her hotel bathtub after fainting this weekend, police have said.
The 54-year-old actress, described as India's first female superstar, died on Saturday night in Dubai.
Her brother-in-law, actor Sanjay Kapoor, told the Indian Express on Sunday she had suffered a heart attack and had no known heart condition.
On Monday Dubai police, citing a post-mortem, tweeted: "The death of Indian actress Sridevi occurred due to drowning in her hotel apartment's bathtub following loss of consciousness."
Police have now referred the case to the public prosecutor.
#DubaiPolice has transferred the case to #Dubai Public Prosecution, which will carry out regular legal procedures followed in such cases.
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— Dubai Policeشرطة دبي (@DubaiPoliceHQ) 26 February 2018
Sridevi, who was known only by her first name, was in the Gulf to attend a wedding with her husband, Boney Kapoor, and younger daughter Khushi.
Videos appearing to show her dancing at the event were widely circulated online.
Born Shree Amma Yanger Ayyapan, the much-loved star started acting at the age of four and worked throughout her childhood, playing her first adult Bollywood role at the age of 13.
Her most famous roles included playing a reporter in Mr India and in Chandni, when she played a woman choosing between two suitors.
In Lamhe, in 1991, she played dual roles of a woman and her daughter.
Much of her appeal was that she appeared in films in a wide variety of Indian languages, having been born into a Tamil/Telugu family in the southern state of Tamil Nadu.
She won five Filmfare Awards, and was nominated 10 times in the Indian equivalent to the Oscars.
In 2013, she was voted India's Greatest Actress in 100 Years, in a national poll to celebrate a centenary of Indian cinema.
She was married twice; to fellow actor Mithun Chakraborty for three years in the 1980s and latterly, to film producer Boney Kapoor.
She stopped acting after her second marriage but made a well-received comeback in 2012 with English Vinglish, about a woman learning English.
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Sridevi last appeared in film, MOM, last year.
Leading politician, fans and fellow Bollywood stars have paid tribute to the actress on social media, with Prime Minister Narendra Modi saying he was "saddened" by the news.
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