Saudi Arabia’s ageing King Salman has been admitted to hospital for unspecified tests, state media reported Sunday. The kingdom has generally sought to quell speculation over the health of the 86-year-old monarch, who has ruled the top oil exporter and the Arab world’s biggest economy since 2015. He entered King Faisal Specialist Hospital in the coastal city of Jeddah on Saturday “to conduct some medical examinations”, according to an official report, citing a royal court statement. “May God preserve the Custodian of the Two Holy Mosques and may he enjoy health and wellness,” the statement sai…