Two juveniles have been charged after several slides at a Massachusetts park were doused with acid in this summer and four children were injured, the Hampden District Attorney Anthony Gulluni said.

The juveniles, whose identities cannot be released due to their ages, have been charged with four counts of assault and battery on a child with injury and assault and battery with a dangerous weapon as well as vandalism, Gulluni said. His office did not say whether the pair have been arrested.