"We have got important information during interrogation of the three arrested persons. But we do not want to disclose details at the moment," Babul Akhtar, offficer-in-charge of the police station of Debiganj, the scene of the murder in northern Panchagargh, told reporters.
The chief priest of Hindu temple Sri Sri Shantu Santo Gaurio, 50-year-old Jagneshwar Roy, was on Sunday slaughtered at Sonapota village, some 494 km from here, in a pre-dawn attack by unidentified assailants who also injured two Hindu devotees before fleeing on a motorbike.
Their comments came a day after a Panchagargh court ordered the trio - two suspected operatives of the outlawed Jamaatul Mujahideeen Bangladesh (JMB) and an activist of fundamentalist Jamaat-e-Islami - to be remanded to police custody for 15 days.
The envoys of the US, Britain and European Union in Dhaka condemned the murder, calling it a "cowardly act" while authorities ordered an intense investigation into the killing, believed to be carried out by Islamists.
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US-based private SITE Intelligence Group said that the Islamic State (ISIS) claimed the responsibility even as authorities dismissed it, saying the Middle-East-based dreaded group had no presence in Bangladesh.
"I, in the possible strongest terms, condemn and deplore the attack and the killing of a member of a minority religious community. They are also peace-loving citizens of this soil and have the right to live in this country," Zia said in the statement issued yesterday.
Roy's murder is the first attack on a Hindu priest and the fifth assault on minority religious communities including Shia Muslims and liberal Sufi preachers in the past six months by suspected Islamists.
Systematic assaults in Bangladesh over the last five months have killed nine persons including two foreigners besides wounding nearly 100 others.