Youths started fire after being insulted by tahfiz students

Mocking between students of Darul Quran Ittifaqiyah tahfiz school and a group of local teenagers in Jalan Datuk Keramat led to the revenge arson attack which killed 23 students and teachers of the school.
Read more at http://www.thestar.com.my/news/nation/2017/09/16/six-of-seven-teens-arrested-tested-positive-for-drugs/