LUCKNOW, April 19 -- Uttar Pradesh Police arrested key accused Maijul in the Bijnor viral arms display case after he returned from South Africa on Saturday, with investigators linking the development to an alleged wider probe into cross border radicalisation and online networks. Additional director general (law and order) Amitabh Yash said in a video statement that immigration authorities flagged Maijul's arrival at Delhi airport based on a Look Out Circular (LOC) issued against him, leading to his custody. He said the alert enabled coordinated action between central agencies and state police, resulting in his immediate detention upon landing. Maijul, a native of Bijnor who had been living in South Africa for several years, was among the wanted accused in a case registered at Nangla police station over a viral social media video showing individuals displaying firearms. Police had earlier arrested three accused in the case and sent them to jail, while LOCs were issued against suspects believed to be operating from abroad. Officials said the case is part of a wider investigation conducted by the Anti Terrorism Squad (ATS) into alleged online radicalisation and foreign linkages. The development follows action on April 10 when police arrested two more accused, Owaid Malik and Jalal Ahmad alias Sabeer Jafari, from Bijnor and expanded the probe into an alleged Pakistan backed network. According to the ADG, the ATS had issued LOCs against Maijul and other suspects, including Azad, who is believed to be in Dubai, and Aqib, another accused linked to overseas operations. A Look Out Circular is an alert issued through the Bureau of Immigration under the ministry of home affairs to enable interception or monitoring of individuals attempting to enter or leave the country....