Wildfires force evacuations at two national parks in the US west

Visitors and staff at Arizona’s Grand Canyon and Colorado’s Black Canyon national park were evacuated

Visitors and staff at two national parks in the US west have been evacuated because of wildfires.

Black Canyon of the Gunnison national park, about 260 miles (418km ) southwest of Denver, closed Thursday morning after lighting sparked blazes on both rims, the park said. The wildfire on the South Rim has burned 2.5 sq miles (6.5 sq km), with no containment of the perimeter.