Thousands of Police protestors clashed outside the Royal Palace in Seoul on Saturday after families of the victims of South Korea's ferry disaster were prevented from marching to the president's residence.
An crowd of about 3,000 forced their way through police barricades in their attempt to join a group of some 50 other families who had been staging a 2-day sit-in nearby.
Police used pepper spray and water cannons and traded punches with protesters in the front of the crowd. A number of Police buses were destroyed by protesters.
"Salvage the Sewol ferry", the protestors chanted.
The sinking of the vessel in April last year claimed 304 lives, most of them teenagers on a school journey.