Doctors are confident US Secretary of State Hillary Clinton will make a "full recovery" after it was discovered that she had a blood clot.
Clinton was in "good spirits" in hospital, the doctors said in a statement.
Clinton suffered a blood clot between her brain and skill but did not suffer a stroke or neurological damage, the statement added.
More top news
Ms Leadsom has received the backing of Ian Duncan Smith, the former work and pensions secretary.
The former shadow work and pensions secretary is considered a more viable candidate than Angela Eagle, a Labour source has told ITV News.
As many as 10 people have been rescued following the raid, according to a Bangladeshi official.