A group of Umno Youth members gathered in front of their arch nemesis PKR’s headquarters in Petaling Jaya late last night in a noisy demonstration, threatening to burn down the building.

About 300 people, according to PKR estimates, had converged on motorcycles and demanded that PKR withdraws its support from the Bersih 2.0 march on July 9.

PKR secretary-general Saifuddin Nasution, who rushed to the HQ after being alerted by party members, said he arrived at about 11pm and observed the demonstration from a distance.