SJB MPs today staged a protest in Parliament against Public Security Minister Sarath Weerasekera.
The protest was staged against the action taken by the police yesterday to prevent protestors joining the rally organised by the main opposition party in Colombo.
The SJB also alleged that an opposition activist from Embilipitya had lost his life while in police custody.
Opposition MPs also carried placards and chanted slogans against the Cabinet minister.