According to media reports, Iranians protested in the country’s Sistan-Baluchestan province, demanding their rights to water flowing from Afghanistan.
Khaama Press reported, citing Iranian state media, that security officials in the port intervened when protestors began assaulting lorries belonging to Afghans.
The rioters allegedly smashed the windows of lorries, according to eyewitnesses.
Meanwhile, another group of Iranian demonstrators gathered outside the Afghan embassy in Zahedan city, demanding that Helmand water be sent to the nation, according to Khaama Press.
The protests came a year after former Afghan President Ashraf Ghani opened the Kamal Khan hydroelectric dam on the Helmand River, declaring that water will no longer be given to Iran for free, but only in return for oil, according to Khaama Press.
According to an Afghan media site, the flow of the Helmand River to Iran has been a source of contention between Afghanistan and Iran for years and has yet to be entirely resolved.