Kuwait's supreme court on Monday upheld a four-year jail term against an online activist for insulting judges on Twitter.
The court, whose rulings are final, convicted Ahmad Fadhel for writing comments on Twitter deemed offensive to a number of judges, the court verdict said.
Three top judges sued the activist, claiming they were subjected to defamation.
A lower court issued the same sentence against Fadhel in October 2014. The ruling was upheld by the appeals court in February last year.
Key opposition leader and former parliamentarian Mussallam Al Barrak has been in jail for a year, serving a two-year jail term for insulting the country's ruler at a public rally.