LAS VEGAS (KLAS)— Fire crews from several departments responded to a large structure fire in the central valley Saturday.

According to Clark County officials, the fire started at a structure near 2975 East Sahara Avenue just before 3 p.m.

Arriving crews found heavy smoke and flames coming from the roof of the structure, prompting a larger response, officials said.

The fire eventually warranted a three-alarm designation, resulting in a total of 27 fire trucks responding.

According to the Regional Transportation Commission, Sahara Avenue was closed in both directions, from Mcleod Street to Eastern Avenue.

The cause of the fire is still being investigated, but officials said no one was injured.