A fire followed by several explosions engulfed state warehouses and neighboring homes in Myanmar’s main city of Yangon early Thursday morning, killing at least 20 people and injuring at least 90 more. The blast occurred as firefighters were attempting to put out a fire that had started in a warehouse. State officials believe water from the firefighters mixed with sulfur, ammonia and sulfur trioxide, compounds stored in the warehouses, to create sulfurous acid, a highly flammable and explosive chemical…
