The demonstrators with banners and placards burnt tyres and said that they would continue with their protest against the police action yesterday till the government provided them protection, officials said.
The protestors, including local people and neighbouring Adivasi tea garden workers, raised slogans against Chief Minister Tarun Gogoi for allegedly failing to give protection to the people along the Assam-Nagaland border.
Several vehicles, including trucks with essential goods towards Nagaland, remained stranded and people could not go for their work in Numaligarh Refinery due to the blockade, they said.
However, the blockade was lifted after a couple of hours as officials assured them of security.
A total of 18 persons, including women, were injured when police fired rubber pellets and used batons at Rangajan when protestors turned violent and attacked police and CRPF following a road blockade agitation yesterday.
Another person in a bid to escape the lathicharge was killed when he was run over by a vehicle there.