At least two people, both toddlers, were injured after playing on slides at a Massachusetts playground that had been doused with acid.

On Sunday, Ashley Thielen of Longmeadow, Massachusetts, just south of Springfield, walked to Bliss Park with her three children, ages 5, 2, and 1. They ventured there to enjoy a day at Wilson Boundless Playground, but their morning of fun quickly ended after her 1-year-old son began crying inconsolably without obvious explanation.

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