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United Continental Holdings named Brett Hart acting CEO, following a heart attack that befell new CEO Oscar Munoz.
"At this time, it is too soon to know the course of treatment and timing of recovery," according to the company. Executive vice president and general counsel Hart "will work closely with Henry L. Meyer III, nonexecutive chairman of the board, and United's experienced executive team to run the company in Munoz's absence," according to the company.