Fox News announced earlier today that Bill O’Reilly will not be returning to the network after a 21 year run. Tucker Carlson has been tapped to replace the 8 PM EST spot.

L.A. Times reports:

O’Reilly — the network’s signature talent who used his cable news fame to become a best-selling author, live tour attraction and TV producer — has been off the air since April 12. He was scheduled to return from a vacation Monday, but instead he will be replaced by Tucker Carlson, who hosts the 9 p.m. Eastern hour that follows O’Reilly’s show.

On Wednesday afternoon, O’Reilly released a statement saying “it is tremendously disheartening that we part ways due to completely unfounded claims.”

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“But that is the unfortunate reality many of us in the public eye must live with today,” he said. “I will always look back on my time at Fox with great pride in the unprecedented success we achieved and with my deepest gratitude to all my dedicated viewers. I wish only the best for Fox News Channel.”

Carlson, who joined the network’s weekday lineup last year and moved to fill Megyn Kelly’s time period in January, will be a part of a major shakeup of the Fox News program lineup triggered by O’Reilly’s departure.

Fox News is also moving its 5 p.m. Eastern discussion show “The Five” to fill Carlson’s 9 p.m. time slot. The replacement for “The Five” will be a new program hosted by Eric Bolling, who is one of the panelists.