A record 100,000 people were estimated to have visited Hull Fair on Saturday, organisers said.
The event, held off the East Yorkshire city’s Walton Road, has been running officially for over 740 years.
Organisers said that the event was “incredibly busy” on Saturday night, while local media said that cars were abandoned as roads become gridlocked.
“Saturday nights are notoriously busy for us, but we think we may have broken our record, estimates suggesting the busiest single day on record, with a potential 100,000 people visiting today,” organisers said.
They added that in 2010 only 250,000 people attended the fair across its entire eight days. This year’s event runs until Saturday.
Police advised people to “avoid the area” on Saturday night, as crowd numbers reportedly swelled to the record levels despite bus driver strikes in the region.
King Edward I issued the Hull Fair with its royal charter in 1279, five years prior to Nottingham’s Goose Fair.
Additional rides arrived at Hull on Monday following the ending of the Goose Fair’s extended run for 2022.