A Hindu woman has killed herself after facing harassment over her friendship with a Muslim man in the southern Indian state of Karnataka.
She told a friend on WhatsApp that she loved Muslims after being questioned over her friendship with the man.
Police said screenshots of this exchange were shared on social media.
Five people from Hindu hardline groups also visited her house on Saturday to warn her parents, police say. The 20-year-old killed herself the same day.
The police initially registered a case of suicide, but widened their investigation after reports about the role of social media in her death started to emerge on Monday.
K Annamalai, a senior police officer Chikkamagaluru district, told the BBC that the woman had left a suicide note.
"She has mentioned that there was a photo of her with a man from another religious community. People started commenting about it and cast aspersions on her character," he said.
He added that he killed herself after five persons went to her house and "complained to her mother that she was in love with a Muslim man."
He added that the police had arrested one person, and were searching for others.