Last week's deadly attack on Yeonpyeong island has escalated military and diplomatic tensions on the Korean Peninsula, and for some in the South Korean capital, Seoul, there is an increasing fear of North Korean retaliation.
Hence, evacuation centres were being prepared in the city on Monday, amidst mounting tensions.
There are 3919 emergency shelters across Seoul - many are housed in subway stations or underground carparks.
http://www.ndtv.com/article/world/south-korea-prepares-emergency-shelters-69600
