Disaster crews are pursuing all possible options to stop or slow the disastrous oil spill in the Gulf of Mexico.
At least 210,000 barrels of oil have poured into the Gulf of Mexico from the damaged well-head and is threatening the region's delicate ecosystem.
President Barack Obama toured the area Sunday and promised full government support.
"I'm going to spare no effort to respond to this crisis for as long as it continues and we will spare no resource to clean up whatever damage is caused," he said.
Stormy conditions have kept the oil out to sea, giving crews additional time to fight the slick. But it has also hampered efforts to lay thousands of feet of oil containment boom to divert the toxic substance.
Meanwhile, BP PLC is drilling a relief well to try and stop the flow of oil into the Gulf, a process that could take months. Even if the strategy works, however, officials say it could take weeks or even months to work.
Obama said the company would be held accountability for the oil spill.
"BP is responsible for this leak," he said. "BP will be paying the bill. But as president of the United States, I'm going to spare no effort to respond to this crisis for as long as it continues. And we will spare no resource to clean up whatever damage is caused."
"We're going to do everything in our power to protect our natural resources, compensate those who have been harmed, rebuild what has been damaged, and help this region persevere like it has done so many times before," he added.
BP executives promised to pay for all the clean up costs, including lost compensation for fisherman.
Commercial and recreational fishing in the Gulf has now been banned from the Mississippi River to the Pensacola Bay for the next 10 days.