BEIRUT (AP) — One Syrian was killed on Sunday and four injured after Kurdish security forces opened fire at pro-government demonstrators in a northeastern city, state media said.

The state news agency SANA said the Kurdish forces opened fire at demonstrators protesting the siege on their neighborhood in Hassakeh city. The area is known as the security square and is controlled by government forces.

A video of the rally showed dozens of men gathering in a street on a rainy day as fire rang out over their heads. The men began chanting: “With our souls, our blood we sacrifice for you Bashar,” in reference to the Syrian President Bashar Assad.

The Kurds, Syria’s largest ethnic minority, have carved out a semi-autonomous enclave in Syria’s north since the start of the civil war in 2011. In the area, they run their own affairs and control most of the country's oil resources.

In both Hassakeh and Qamishli cities, they share control with government forces— which have presence in security zones, near the airport and in some neighborhoods. Both cities have a sizeable Kurdish population.

Tension occasionally erupts between the two sides, but the Kurdish forces have more presence and control there. In recent weeks, Kurdish forces have imposed a siege on government neighborhoods in Hassakeh and to a lesser degree in Qamishli.

In Hassakeh, the Kurdish forces prevented flour from entering the government-controlled areas, forcing bakeries to shut down in the last week. Fuel and water have also been prevented from passing through checkpoints erected around the neighborhoods. Amid the tension, the two sides have conducted arrest campaigns against each other's supporters and security members.

There was no immediate comment from the Kurdish forces. But Kurdish officials have previously said they were reacting to government troops which have imposed a siege and are harassing Kurdish-dominated neighborhoods in the northwestern Aleppo province where government is in control.

The Kurdish forces are backed by the U.S-led coalition, with which they fought Islamic State militants in Syria and ended their territorial control of large parts of the country in a military campaign that ended in 2019.

The U.S-led coalition still has forces in Kurdish-controlled areas in Syria, citing continued joint efforts to weed out the militants' remnants. The presence of US troops is another reason for tension between the Kurdish and government forces.

Russia, which conducts patrols in northeastern Syria and is a main backer of the Syrian government, has offered to mediate between the Kurdish forces and the government.

The Britain-based Syrian Observatory for Human Rights said government forces have besieged Kurdish areas in northwestern Aleppo for month— preventing foods and medical supplies from entering. The Kurdish forces responded by imposing a siege in on government areas in the two cities for the last 21 days.

The Observatory said it is not clear if the person killed in the protest was a civilian or member of the government security forces.