areview.co.cc: Some six people including four foreign journalists were killed while several others injured when a blast took place near a girls high school in Koto, Lower Dir, Dunya News reported today. According to sources, inauguration ceremony of the said school was about to start when the blast occurred in which four foreign journalists among six killed.Many journalists including a foreign journalist were among the participants of the ceremony.Police and law enforcement agencies threw cordon around the area and started investigation. Rescue efforts were also kicked off.Lower Dir DPO Mumtaz Zareen said that a security forces convoy was targeted in the blast.It merits to mention that so far militants have destroyed several schools in Koto.