https://www.scientificamerican.com/article/spacex-crew-dragon-capsule-explodes-during-engine-test/

A test version of SpaceX’s new astronaut taxi, dubbed the Crew Dragon, suffered some kind of an anomaly during an engine test Saturday (April 20) at the company’s facilities at Cape Canaveral Air Force Station.

According to Florida Today, large plumes of smoke were seen emanating from the area, indicating something had gone wrong. There were no  injuries caused by  the anomaly, which is now under control, according to officials with the 45th Space Wing based at the Air Force station.