Al Jazeera, which made a massive investment in covering the United States less than three years ago, is slamming the brakes on its American operation.

Al Jazeera America, a cable news channel that debuted in August 2013, is shutting down. Employees were informed of the decision during an all-hands staff meeting on Wednesday afternoon.

During the meeting, Al Jazeera America brass said the channel’s business model was “no longer sustainable.” It will shut down by April 30, an Al Jazeera American executive told staff, saying the decision was made by the channel’s board of directors and was not a reflection of the quality of their work.

Employees also were told that Al Jazeera will pursue a new global online strategy online with content delivered from the U.S. later this year.