UPFA MP Arundika Fernando apologized to Parliament yesterday for taking the Speaker's chair and conducting a mock parliamentary session in November.
Making a statement in Parliament, Fernando said he regretted his behavior.
The UPFA MP obstructed the Speaker's duties during the when a no-confidence against former President Mahinda Rajapaksa was taken up in the House.
UPFA Parliamentarians disrupted the proceedings of the House by staging a protest against Speaker Karu Jayasuriya's conduct.
However, a parliamentary committee is currently conducting an inquiry into the clashes that broke out in the House.
Informed political sources said the committee would also conduct an investigation into Fernando's behavior.