Security forces in Liberia fired shots in the air in order to break up a protest at an ArcelorMittal SA iron ore plant.

“The protesters, who also fired shots, blocked entries to the mine, the company’s railroad and offices. The company said in a statement they also entered the mines and looted equipment and building materials near the mine entrance, causing significant damage,” reports Business Insider.

According to one demonstrator, the company had not compensated local people for crops, nor had it paid wages or renovated houses.

Under a 25-year deal with the government, the Indian steel and mining conglomerate runs  the plant, which is in Nimba County.

“Ringleaders, including those who shot at the police, have been arrested and are being brought to Monrovia for further investigation and prosecution,” the presidency said in a statement.