Three people have been killed and several others injured following a shooting at a food festival near the Space Needle in Seattle on Sunday, the city fire department said.

Axar.az reports, citing BBC, Mayor Katie Wilson said one suspect was taken into custody following the incident at the Seattle Centre, which had been hosting the annual Bite of Seattle food festival across the weekend when the shots were fired at around 18:00 local time.

A second suspect fled the scene and is yet to be apprehended, assistant chief of Seattle Police Tyrone Davis added. He said it is believed the suspects were shooting at each other.

Two deaths were confirmed at the scene, with one person dying later in hospital. Those injured include a two-year-old boy, officials said.

The Seattle Police Department said an investigation remains ongoing and urged the public to avoid the area.

Wilson said in a statement that she wanted to "thank the Seattle police officers who responded to the scene and took a suspect into custody".