At least one person was killed and 21 more injured after an explosion at Austria's main gas hub in Baumgarten an der March, just east of Vienna, Tuesday. The Baumgarten gas hub is one of Europe's most important gas hubs for receiving Russian and Norwegian natural gas. Roughly 40 billion cubic metres of natural gas is transported through the hub each year. Emergency services are at the location... Еще of the explosion. The cause of the blast is as of yet unclear.