Police arrested four alleged operatives of “Neo JMB” in Rajshahi early yesterday.

Some sharp weapons and jihadi books were also seized from the possession of Aslam, 37, Mohammad Ali, 30, Babu Huzur, 28, and Abul Kashem Rokon, 38, said Sumit Chowdhury, additional superintendent of Rajshahi Special Branch of Police.

They were held following overnight drives in Puthia and Durgapur upazilas, he said.