Chief Minister Tarun Gogoi said his action was "condemnable" and he should be punished.
BBC: India
2.
Plainclothes police officers picked up Anna Hazare from a house in Delhi and drove him away in an unmarked car, fellow activist Akhil Gogoi told the AFP news agency.
BBC: India anti-corruption activist Anna Hazare detained
3.
Meghalaya Chief Minister Mukul Sangma and Assam Chief Minister Tarun Gogoi have both appealed for peace and hundreds of armed policemen and border guards have been sent to the area.
BBC: Four die in tribal clashes in India's north-east