Hong Kong suspended classes on Thursday morning after the city’s weather forecaster issued a red rainstorm warning, which was lowered to amber in less than two hours. The red warning was raised at 7.40am and replaced by the amber signal at 9.25am. The Education Bureau said students attending morning and whole-day schools were not required to go to class while the red warning was in force. Schools should nevertheless keep their premises open to care for students who have already arrived, the...