Thailand's Deputy Prime Minister Suthep Thaugsuban on Tuesday reported to the Department of Special Investigation or DSI to hear complaint from relatives of victims during the April 10 clashes between the protesters and government troops. Suthep arrived at the department around 08:35 a.m. and was greeted by DSI chief Tharit Pengdit and a national deputy police chief, then he walked inside. Acting government spokesman Panitan Wattanayagorn said Monday that Suthep's decision made after the United front for Democracy against Dictatorship (UDD), also known as the 'red-shirts' movement, set its conditions to end the protest. The UDD announced Monday evening that it will end its nearly two- month long rally once the deputy prime minister for security affairs surrenders to police to face charges over whether he was involved in the order to disperse red-shirts protesters last month. The clashes left 25 dead and over 800 injured. Relatives and families of victims of the clashes, led by the opposition party Pheu Thai, filed a complaint with the DSI against Suthep and Prime Minister Abhisit Vejjajiva for allegedly ordering the operation. 