Colombo, Nov 05: Sri Lanka President Chandrika Kumaratunga today declared a state of emergency as the country plunged into political turmoil following the sacking of three ministers, her office said. Kumaratunga used her executive powers to impose the state of emergency which give sweeping authority to the security forces to arrest and detain suspects, an official at her office told news report. The move followed yesterday`s sacking of the Ministers of Defence, Interior and Information as well as the suspension of Parliament. Bureau Report