RAF Bomb Disposal carried out a controlled explosion on a school field following a national alert that a chemical used in science lessons could be dangerous.
Staff at University Academy Holbeach (UAH) called in the military after receiving newly revised advice on how to store the chemical, 2,4-DNHP, which is used in some chemistry experiments.
UAH principal Steve Baragwanath said Cleapss, the science advisory body, changed its advice to schools on how the chemical should be stored and those keeping it in powder form – according to original guidelines – were advised in an email alert to call bomb disposal.
Bomb disposal arrived at the school on Wednesday, within hours of new advice being received, and safely disposed of the chemical.
Schools across the country have been affected in the same way.