The Oxfordshire Yeoman, a well-known pub on Wroslyn Road in Witney, has unexpectedly closed until further notice.
The establishment, which describes itself as a traditional and welcoming free house near the edge of the Cotswolds, informed customers late on Thursday, November 5 that it would remain shut for the present.
In a statement, the owners apologised for any inconvenience caused but did not provide an explanation for the closure.
Attempts to reach the landlords have so far been unsuccessful.
Customers and regulars subsequently posted messages of support on social media.
Many expressed concern for the pub’s team and hope that the Oxfordshire Yeoman would reopen quickly.