The West Bengal Special Task Force (STF) on Monday arrested a suspected associate of alleged Jaish-e-Mohammed operative Hamim Mondal from Howrah in connection with an ongoing probe into an alleged espionage network.

Aditya Singh alias Raj alias Raju, was apprehended from Belilious Road in neighbouring Howrah following leads obtained during the interrogation of Mondal and his alleged associate, Arpita Sarkar, a senior officer said.