Police have arrested an 18-year-old man accused of pushing an 8-year-old boy off a slide at a suburban Minneapolis water park.

Authorities say the boy fell 31 feet to the ground Tuesday. Police say he was conscious and breathing when officers arrived and is hospitalized in stable condition.

This is 18yo Roman Adams, accused of tossing a little boy off the top of a 30-ft water slide platform because the line "wasn't moving fast enough". Police say the two had no interaction prior to the incident. pic.twitter.com/dsdmhOEE4A — Ryan Raiche (@ryanraiche) August 2, 2018

The incident happened at the Apple Valley Aquatic Center. Police say the man, 18-year-old Roman Adams, and the boy did not know each other and were waiting in line to ride down the water slide when Adams allegedly picked up the boy at the top of the slide platform and pushed him over the railing.

The Star Tribune reports criminal charges are expected.