Firefighters responded to a residential fire in the Juanita neighborhood on Tuesday after hearing reports of explosions.

The fire appeared to have started in a backyard shed, which spread to nearby trees and fence at around 4:50 p.m., according to battalion chief Greg Picinich with the Kirkland Fire Department.

No injuries were reported.

Picinich confirmed there were reports of loud explosions; however, there were no explosions when firefighters arrived at the 14200 block of 100th Avenue Northeast, the location of the scene.

One witness said on the Kirkland Reporter’s Facebook page that he heard a boom that was “loud enough to feel the concussion from that blast two blocks away.” And that a pillar of dark smoke could be seen rising from the location.

The same witness also reported seeing multiple emergency vehicles arrive at the location.

“When I drove by at 7:30 p.m., two ambulances and multiple police vehicles were still at the scene,” the witness said.

Picinich said the cause of the fire and explosions are still under investigation.