<p>An explosion at the McKinley Climatic Lab at Eglin Air Force Base in Florida triggered an evacuation of the surrounding area and a shelter in place order for other parts of the base on Wednesday, July 5.</p><p>There was concern the smoke contained methyl chloride, according to the base’s Twitter account</a>. There were no significant injuries reported</a>, and the incident remains under investigation. Credit: Instagram/rix_64 via Storyful</p><br />