Video: 'ARCHIVAL VIDEO: Deepwater Horizon oil rig in Gulf of Mexico ignited in 2010 explosion'

(Tuesday, April 20, 2010, 9:56 p.m. CDT) — An explosion and fire on the Deepwater Horizon BP oil rig off the Louisiana coast in the Gulf of Mexico killed 11 workers tonight and caused a massive oil spill.

It became the largest U.S. marine oil spill in history, stretching over almost three months and releasing about 4.9 million barrels of crude.