bombing in Kathmandu

Today we were having lunch at the office and there was what sounded like a big explosion. It turned out to be more than two miles away, near downtown Kathmandu. There have been several bombings since I've been here, but never so large that you could hear it across town. The bomb was at a large building under construction by the government - a building next to the major north-south street we take a couple times a week.