IS claims killing of Bangladesh university professor

Dhaka: A university professor was hacked to death by attackers armed with machetes in northwestern Bangladesh on Saturday, a killing claimed by Islamic State jihadists and echoing the murders of several secular bloggers.

The assailants almost beheaded English professor Rezaul Karim Siddique, 58, when they attacked him from behind as he walked to the bus station from his home in the city of Rajshahi, police said.

"By examining the nature of the attack, we suspect that it was carried out by extremist groups," Rajshahi Metropolitan Police commissioner Mohammad Shamsuddin told AFP.

The Islamic State (IS) group claimed the murder of Siddique, the fourth professor from Rajshahi University to be killed by Islamists.

Militants have also targeted secular bloggers and students in a string of murders that has sparked outrage and raised fears freedom of speech is under threat in Muslim-majority Bangladesh.

"Islamic State fighters assassinate(d) a university teacher for calling to atheism in the city of Rajshahi in Bangladesh," IS's Amaq news agency said.

Shamsuddin said police had not yet named any suspects, but the pattern of the attack fitted with previous killings by Islamist militants.

People close to Siddique said he had never spoken out against religion, but he may have been targeted for his role in leading music and literature groups.

"As far as I know, my husband didn't have any personal enmity with anyone," his wife, Hosne Ara, told the BBC.

Hundreds of university students held protests after news of the murder, marching on the campus and shouting slogans demanding the arrest of the attackers, said local police chief Humayun Kabir.

"The students were shocked at the latest brutal killing of their teachers," Mostafiz Mishu, a student who witnessed the protests, told AFP.

"Some 500 of them shouted slogans and joined the marches calling for protection of all teachers and exemplary punishment for the killers."

Homegrown Islamist militants have been blamed for killing several secular bloggers and online activists since 2013, most recently in the capital Dhaka early this month.

Eight members of banned Islamist group Ansarullah Bangla Team, including a top cleric said to be its founder, were convicted late last year for the murder of atheist blogger Ahmed Rajib Haider.