A massive oil leak threatens the Louisiana enirvonment after an explosion and fire on an oil drilling rig about 50 miles off the Louisiana coast, leaving 11 workers missing and presumed dead. The rig sank two days later. The cause of the explosion has not been determined. A riser pipe connecting the rig with an oil well it was drilling bent, broke and fell to the sea floor some 5,000 feet. Oil is now escaping from that pipe at the open end and at two other places, according to BP (British Petroleum).
The Russian Defence Ministry harbours plans to build a deep-water submersible vehicle to reach the bottom of the Mariana Trench