Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Workers Struggle to Contain Massive Oil Spill VOA News 07 May 2010 The containment vessel is lowered into the Gulf of Mexico at the site of the Deepwater Horizon rig collapse, 06 May 2010 Photo: AP The containment vessel is lowered into the Gulf of Mexico at the site of the Deepwater Horizon rig collapse, 06 May 2010 Workers in the Gulf of Mexico are struggling to contain a massive oil spill as crude has begun to reach animal habitats along southern U.S. shores. Engineers from oil giant BP on Thursday lowered an enormous dome designed to remove petroleum from an underwater well that has been leaking thousands of liters per day since a BP rig exploded last week. BP officials say by next week, the dome could be ready to funnel oil to a boat on the surface of the Gulf. This is the first time the technique has been used so far below the water's surface - about 1.5 kilometers deep. BP spokesman David Nicholas says the company cannot guarantee the dome will work. Among BP's other efforts to contain the spill, the company is drilling a relief well to pump the leaking reservoir. But BP says the well will take about three months to prepare. Oil reached barrier islands off southern Louisiana's coast Thursday, and began to cover wildlife there. The Reuters news agency quoted U.S. Interior Secretary Ken Salazar as saying Thursday that BP and its partners made "some very major mistakes," and that the company's "life is on the line." He did not elaborate on the comments. Some information for this report was provided by AP and Reuters. .