A bevy of cable’s general- and business-news networks rushed to provide live coverage of the United Kingdom’s shocking decision to pull out of the European Union, also known by the colloquial term “brexit,” pre-empting regularly scheduled programming to do so.

Fox Business Network devoted its entire evening to coverage, even going commercial free at some points. Stuart Varney was anchoring coverage in late night. CNBC put anchor Kelly Evans on the air around 11 p.m. to explain the financial fallout from the decision, which has already sent Dow Jones Industrial Average futures tumbling by hundreds of points. Bloomberg Television also featured wall to wall coverage of the maneuver and its ramifications for the markets.

CNN began running its feed from CNN International, giving reporters on the ground in London and elsewhere the spotlight. Fox News Channel pre-empted a scheduled repeat of Thursday evening’s “The Kelly File.” Lawrence O’Donnell, who had been on the air hosting his regular weeknight progam “The Last Word,” continued to anchor coverage on MSNBC well past midnight.

More coverage is likely overnight and in the morning, particularly on the business-news outlets.