Beijing: Massive blast near US Embassy in China

A blast has been reported near US Embassy in China's Beijing. The initial reports suggest that massive explosion has occurred just outside US Embassy. People took to street for figuring out as to what has happened. The bigger question that has jolted the security is how blast can occur in the most protected area of the country. However, now the agencies are trying to figure if the blast has happened due to some flammable thing or is it a well place bomb blast. No casualties have been reported as of now.