According to a staff and wire report from MSNBC, just after 10 p.m. (Central) Tuesday night, an oil rig in the Gulf of Mexico 52 miles off the coast of Louisiana exploded and caught fire. No cause has yet been determined. The rig, called Deepwater Horizon, is owned by Transocean and leased by BP Exploration and Production. As many as seven workers were injured in the blast, three critically. No deaths have been reported, but a Transocean spokesman said that may change. Early reports held that 15 workers were unaccounted for after the blast, but a later report by Upstreamonline.com says that there are "11 to 12" people still missing. At one point, according to MSNBC's report, the fire was so intense that it hampered rescue efforts. As of that report, the rig was still on fire, but fire boats had responded. The unit is leaning, and a Coast Guard Commander told a Parish president that he felt the rig could "go over" sometime Wednesday. Read much more, here.