The four arrested in connection with the security breach in Parliament yesterday have been charged under anti-terror law, Unlawful Activities (Prevention) Act (UAPA), besides sections in Indian Penal Code. They will be produced in court today. The four arrested include Sagar Sharma and D Manoranjan, who used yellow smoke canisters inside Lok Sabha, and Neelam Devi and Amol Shinde, who burst red and yellow canisters outside Parliament.