Twenty-one people were charged with illegal assembly at the Petaling Jaya magistrate's court this morning.

They also faced a second charge of failing to adhere to a police order to disperse.

The group, which included one member of parliament and two state assemblypersons, was accused of committing the offences during an anti-ISA vigil at the MBPJ compound in Petaling Jaya from 9pm to 10.10pm on Oct 9 last year.

They were charged under Section 27 of the Police Act (for both the offences) and face a possible fine of between RM2,000 and RM10,000 and/or a jail term of not more than one year for each charge.