Heidy Solano-Sandoval

A fast-moving wildfire burning in Glendora, California has burned at least 1,700 acres. The fire in the hills northeast of Downtown Los Angeles has sent smoke and ash in every direction, with reports of the smell of wood smoke as far as 30-miles west in Santa Monica. In a sign of the times, Angelenos have taken to Instagram and social media to post pictures of the vibrant skies.

As of Thursday night the fire was 30 percent contained, according to the L.A. County Office of Emergency Management. Three men โ€” Clifford E. Henry, 22; Jonathan C. Jarrell, 23; and Steven R. Aguirre, 21, โ€” have been arrested on charges of recklessly starting a fire. One of the men told detectives they were tossing pieces of paper into a campfire when one of the papers flew away and lit the dry brush on fire.

The smoke and ash in the sky has left a saturated red and purple sky throughout the day, which Angelenos were quick to document. A search on Instagram for #GlendoraFire or #ColbyFire resulted in more than 5,000 results of images uploaded to the photo sharing site in less than 24 hours.

Take a look at some of the images below.

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The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra and Aqua satellites captured these images of the plume of smoke blanketed much of metropolitan Los Angeles.

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For the latest news on the Colby fire visit our parent company ABC News.