Serious injuries caused by Mustard Gas Projectile in Belgium

^{Close-up of an unexploded mustard gas projectile discovered in Belgium. Image source: @MatMcLachlan.}^{Image showing an unexploded mustard gas projectile which was discovered in Belgium following reports of serious injuries caused to a Belgian civilian. Image source: @MatMcLachlan.}^{Serious injuries caused to a Belgian civilian who inadvertently touched an unexploded mustard gas projectile found in Belgium. Image source: @MatMcLachlan.}mustard gas had leaked from a WWI underwater ‘weapons cemetery’ in the North Sea