White House press secretary Josh Earnest answers a question on the death of Kayla Mueller, the last known American hostage of the self-proclaimed Islamic State group, during the daily press briefing, Tuesday, at the White House in Washington. — AP WASHINGTON — At least one other American is being held hostage in the Middle East, White House spokesman Josh Earnest told reporters on Tuesday following confirmation of the death of US aid worker Kayla Mueller. Earnest declined to comment further. The family of Austin Tice, a journalist who disappeared in Damascus in August 2012, held a news conference in Washington last week about his case. — Reuters