Al Jazeera, Riyadh :A woman who tried to drive in defiance of a ban on women drivers in Saudi Arabia has been arrested after being blocked at the border with the United Arab Emirates for a day, activists said along with many users on social media.Saudi Arabia is the only country in the world which does not allow women to drive.”I have been at the Saudi border for 24 hours. They don’t want to give me my passport nor will they let me pass,” Loujain Hathloul said in a tweet at around midday, before tweets from @LoujainHathloul stopped.Activists said she was arrested on Monday afternoon, but the interior ministry could not immediately comment on her case.