SAN FRANCISCO: A shooting left two people dead and several wounded on Saturday night near the capital city of the US state of Texas, local police said.

The shooting took place before 11 p.m. Saturday (4 a.m. GMT Sunday) during a Juneteenth celebration at Old Settlers Park in Round Rock, about 19 miles (30.4 km) north of Austin, reported Xinhua News Agency.

An altercation began between two groups during a concert at the event and resulted in the shooting, Round Rock Police Chief Allen Banks said during a news conference at the scene. The two victims who died at the scene were not involved in the altercation, Allen said, adding that multiple wounded victims were transported to local hospitals.

An investigation was going on. Police did not know how many shooters were involved, and no suspect was yet in custody, he said.