Deputies scuffle during a session in the chamber of the Ukrainian parliament in Kiev, bringing proceedings to a halt. Photo: Reuters
The fight broke out between members of the pro-Western opposition who want to take Ukraine out of Russia's shadow and MPs from President Viktor Yanukovych's party, which bases its support in Ukraine's Russian-speaking east.
One MP sustained what appeared to be a blow to the head and was taken to hospital.
Scuffles have occurred in Ukraine's Parliament in the past, memorably in December 2010, when six MPs had to be taken to hospital after a brawl in which chairs were thrown along with punches.