UINTA MOUNTAINS, Utah — Search and rescue teams are on their way to evacuate recreationists in an area ordered immediately evacuated after rapid movements caused by the Yellow Lake Fire Friday afternoon.

Authorities on Thursday evening issued immediate evacuation orders for the area north of Mirror Lake Road, between Yellow Pine and Highline Trail, due to recent rapid movements of the Yellow Lake Fire.

It is not yet known how the recreationists ended up in the area, nor is their condition confirmed at this time.

The Yellow Lake Fire was previously reported to be nearly 20,000 acres and was 21% contained, but it was expected to become more difficult to contain due to drier conditions later in the week.

Officials also asked to call 911 in a life-threatening emergency and to call 435-615-3600 for non-emergency assistance.