At least two flares were also released at the venue.
It happened when PPBM chairman Tun Dr Mahathir Mohamad was responding to one of the audiences' question.
![Flares are thrown into the crowd at Dewan Raja Muda Musa hall during the event. -Photo from sinar.tv](http://img.astroawani.com/2017-08/71502618522_freesize.jpg)
![Tun Dr Mahathir Mohamad responds to questions by the audience. -Photo from sinar.tv](http://img.astroawani.com/2017-08/51502618535_freesize.jpg)
Tun Mahathir and wifeTun Siti Hasmah Mohd Ali were quickly protected by security personnel and whisked away right after the incident.