Saudi court sentenced 15 people to death for spying for the kingdom’s arch-enemy, Iran, Saudi-owned media reported, in a ruling that could further stoke tension between the two rival powers. The 15 were among 32 people — comprising 30 Saudi Shia Muslims, one Iranian and an Afghan — who were detained in 2013 on charges of spying for Iran and went on trial in February. There were no immediate details on the outcome of the trial for the remaining 17 suspects. The reports said they were charged with seeking to commit acts of sabotage against Saudi economic interests, inciting sectarian strife, recruiting others for espionage and participating in anti-government protests. Saudi state media also reported that those charged were accused of establishing a spy ring in collaboration with Iranian intelligence and providing Iran with highly sensitive information on the Saudi military. Diplomatic tensions have been high between Shia power Iran and the Sunni-ruled kingdom of Saudi Arabia all year long.