A tornado tore through an industrial site in Batam, Indonesia, ripping roofing from workshop facilities and sending helmeted workers running for cover as weather officials warned that unstable conditions could trigger further sudden storms. The short-lived wind vortex, described locally as a puting beliung, struck VME Process in Tanjung Sengkuang, Batu Ampar, at about 10am on Wednesday, damaging workers’ shelters and scattering construction materials across the site, according to Indonesian...