Flickr user Jinja has posted images of police action against monks in Cambodia.
More images at the Cambodian League for the Promotion and Defense of Human Rights.
The monks were protesting against Vietnam's arrest earlier this year of a Cambodian monk Tim Sakhorn. According to a petition at the petition online site, Tim Sakhorn was arrested by Cambodian authorities on June 30 for allegedly for “conducting activities that are harmful to the Cambodia-Vietnam friendship.”. The monk was defrocked and after which his whereabouts were not known. In August the Vietnamese authorities announced that they have arrested Tim Sakhorn for activities that undermine Vietnam's unity.
The monks also want Vietnam to return the Cambodian land that they claim Vietnam occupied in the past. The fight with the police broke out when the monks were heading to the Vietnamese Embassy to drop of a petition.
Bloggers in Cambodia and abroad have been commenting on the issue.
(Both from Details are Sketchy)
(Thanks to John Weeks for the links)