Fahd bin Hussein Daghriri was found guilty and sentenced to death for his role in the murder of a fellow Saudi citizen, the interior ministry said in a statement carried by the official Saudi Press Agency.
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Authorities carried out the execution in the southern region of Jazan.
According to an AFP tally, Daghriri brings to 89 the number of locals and foreigners executed in the kingdom this year, despite activists' concerns that trials are not conducted fairly.
The Islamic kingdom executed 87 people in 2014, according to AFP's count.
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Under the Gulf nation's strict version of the Sharia law, drug trafficking, rape, murder, apostasy and armed robbery are all punishable by death.
Executions are carried out in public, mostly by beheading with a sword.
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