US calls for BP oil cap release plan in Gulf of Mexico
The US government has ordered BP to submit a plan for reopening its capped well in the Gulf of Mexico amid concerns that oil may be seeping from the ocean floor near the well.
The US official in charge of cleaning up the oil spill, Thad Allen, said the plan would have to be implemented as soon as possible if this was confirmed.
Laura Trevelyan explains why the cap may have to be released.
19 Jul 2010