PKR is expecting trouble at its night ceramahs scheduled for the next few days in Johor, where it is holding its national congress.

According to party deputy president Azmin Ali, all police permits for events scheduled from tonight to Sunday night were revoked last night.

"We have 15 to 20 events at 14 divisions scheduled every night, with permits given a few days ago, but revoked last night," he told reporters after officially opening the youth and women's wing congress at Pulai Spring Resort.