Some 30 students who have dug in at Dataran Merdeka since yesterday, are determined to stand their ground despite being instructed to leave by a Kuala Lumpur City Hall (DBKL) official. br br Ten DBKL officials and five policemen showed up in the late morning to confront the sit-in. br br DBKL assistant enforcement official Zawaye Desan met the students at around noon today and instructed them to clear their things to make way for a royal concert tonight.