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. White House: No New Offshore Oil Drilling VOA News 30 April 2010 Gulf Oil Spill Creeps Towards Mississippi Delta, 29 Apr 2010 Photo: NASA Gulf Oil Spill Creeps Towards Mississippi Delta, 29 Apr 2010 A White House official says there will be no new offshore drilling until a review of the oil well accident that caused a major spill in the Gulf of Mexico. In an interview on ABC television Friday, White House adviser David Axelrod said officials want to determine what happened and whether there was something "unique and preventable." President Barack Obama recently lifted a moratorium on new offshore drilling to increase domestic oil supplies. Oil from the leaking well reached the U.S. coastline late Thursday. It touched the shore near the mouth of the Mississippi River in the southern state of Louisiana, where Governor Bobby Jindal declared a state of emergency. There is concern about the potentially devastating ecological impact of the spill. The oil threatens birds, fish, shrimp and other wildlife in the seafood-rich area. Emergency crews are deploying containment booms as more of the massive oil slick approaches land. Meteorologists say winds have been constant for several days, pushing the slick from the site of the damaged Horizon Deepwater oil rig, which exploded and sank a week ago. Marine experts say that in addition to Louisiana, the slick could affect parts of Alabama, Florida, Mississippi and Texas.  Thursday, President Obama ordered federal agencies to take aggressive steps in response to what his government now calls an "oil spill of national significance." The president dispatched key officials to the region and directed the use of government resource to assist containment and cleanup efforts. U.S. Homeland Security Secretary Janet Napolitano is one of the officials headed to the Gulf region. She says the government is determined to discover what caused the explosion that preceded the oil leak. The blast injured several workers, leaving at least 11 others missing and feared dead. The oil spill is five times larger than first estimated. The oil company British Petroleum operated the rig. Some information for this report was provided by AP and Reuters. .