
All of them were in Bang Mod area.
At the Wat Srisook School, a teacher received a phone call and heard a male caller saying, "Is that Wat Srisook School? We have planted the bomb there. If you don't want to see casualties, alert parents so that they can come to pick up their children".
The school alerted police and parents.
The school also gradually released each student to his or her parent one by one to prevent kidnapping cases.
The search later found no bomb in the school's compound.
Pol Mag General Waranwas Karunyatas, who heads Metropolitan Police Bureau 8, believed someone was trying to create confusion.