Experts are urging stronger safety measures and potential mandatory closures of outdoor pools during thunderstorms following a dangerous lightning strike.

A lightning strike at a Hong Kong swimming pool has prompted calls for mandatory closures of outdoor public venues during thundery weather and stronger protection measures. One day after the incident on Saturday, experts told the South China Morning Post that extra caution was needed at venues such as swimming pools because water was highly conductive and lightning-protection systems were not foolproof. On Saturday morning, while a thunderstorm warning was in force, lightning struck a diving...