A group of villagers of Veera Rajapuram in Karur district detained 20 sand laden lorries and two earth movers alleging violation of mining rules at Thavittupalayam.
Sources said that the agitators, most of them women, blocked the temporary path across the Cauvery river, which was used by the lorries to transport sand. Alleging that the lorries had loaded sand from the unlicensed area of the river, they refused to give way to the lorries.
On information, the police and revenue officials rushed to the spot and conducted negotiations with the villagers.
The protest was withdrawn after about three hours.