Speaker Karu Jayasuriya called for an inquiry into the clash between some MPs in the Parliamentary Chamber this afternoon.
UNP MP Sandith Samarasinghe was admitted to hospital following the clash.
The brawl erupted when Minister Field Marshal Sarath Fonseka started to speak on the reduction of former President Mahinda Rajapaksa's security.
The Parliament was adjourned till 1.00 p.m. tomorrow.