فَعَتَوۡاْ عَنۡ أَمۡرِ رَبِّهِمۡ فَأَخَذَتۡهُمُ ٱلصَّـٰعِقَةُ وَهُمۡ يَنظُرُونَ
So they become arrogant/disobedient from their Lord`s order/command, so the death/destructive torture punished/took them, and (while) they are looking/watching
Author: Literal