Electoral watchdog Bersih will proceed with its defamation suit against Sungai Besar Umno chief Jamal Md Yunos for alleging the NGO coalition is infiltrated by IS.

Jamal, who leads an anti-Bersih group referred to as the 'Red Shirts', also claimed he has information that Bersih would besiege Putrajaya and airports during its Nov 19 rally in Kuala Lumpur.