Kabul/New Delhi: Four more persons were detained today on suspicion of involvement in the murder of Indian writer Sushmita Banerjee, sources said.
The four accused - identified as Nawab, Ruzi Khan, Mohammad Rahim and Mir Hamza - were being questioned, the sources said.
Afghan police said yesterday that they had arrested two militants of the Haqqani network for the murder of Mrs Banerjee, whose book about her dramatic escape from the Taliban was made into a Bollywood film.
They said the two men, arrested in Sharan, the capital of Paktika province late on Monday, had confessed to killing her.
There was a protest in front of Kabul University today to condemn the killing of Mrs Banerjee in Paktika province last Wednesday. Over 100 people, a majority of them women, joined the demonstration and denounced the killing.
The 49-year-old Indian author was dragged out of her husband's house in eastern Paktika province by masked gunmen and shot dead.
Two of the arrested men confessed that they were ordered to kill Mrs Banerjee because the film that was made from her book was an insult to the Taliban, Afghan police officials said.
Her book "A Kabuliwala's Bengali Wife", an account of her escape from the Taliban two decades ago, was made into a Bollywood film in 2003.
However, the Taliban had denied involvement in Mrs Banerjee's murder last week.