PSM members and supporters were heckled by BN supporters today as they marched to the nomination centre in Semenyih.
Responding to the incident, PSM chairperson Nasir Hashim said such behaviour reflects badly on BN.
The battle for the Semenyih state seat will be a four-cornered fight.
Those in the running are BN's Zakaria Hanafi, Pakatan Harapan's Muhammad Aiman Zainali, PSM's Nik Aziz Afiq Abdul and independent candidate Kuan Chee Heng.