The sand storms were churned up by winds in Gobi Desert and Inner Mongolia on Wednesday in consequence of a low atmospheric pressure over the central part of Mongolia and the following high pressure. They descended on the west coast of Korea and some areas of Jagang Province next day.

It is experts' view that all areas of the DPRK will be affected slightly by the storms from nighttime.

The latest storms are the second in May and fourth since the beginning of the year.