(CNN) -- Saudi Arabia released US-Saudi dual national Saad Ibrahim Almadi from prison, more than a year after he was arrested for tweets critical of the kingdom, Almadi's son, Ibrahim, told CNN. Almadi was released at 2 a.m. local time on Tuesday and is currently in Riyadh under a travel ban, said his son, who is based Read this story at KRDO , CNN , KRDO , KRDO