An investigation committee has been formed to probe the latest violence  in Khagrachhari district over the death of a school teacher in mob lynching . The 4-member committee will be led by the Additional District Magistrate of Khagrachari, said Deputy Commissioner Mohammad Shahiduzzaman on Wednesday. Besides, Section 144 imposed in the area after violence on Tuesday was withdrawn at 3 pm today. Meanwhile, two cases were filed over allegations of raping a student at Khagrachhari Technical School and College and the incidents of obstruction of government duties and assault. Now case has been filed over the mob lynching yet. No one was arrested in connection with the cases. Deputy Commissioner and the Police Superintendent visited the affected areas. A teacher of the school, Abul Hasanat Sohel Rana, was killed on Tuesday in a lynch-mob attack over the allegations that he had raped a student of class 7 at the same school. The aftermath of this incident sparked protests in the town  starting in the afternoon, leading to several clashes between the ethnic minority and Bengali communities. During the clashes , several vehicles were vandalized, and shops were damaged and torched.