Minneapolis prosecutors dismissed charges against four of the five men charged in last month's pedal pub water balloon attack.

City Attorney Susan Segal said after the Tuesday hearing in Hennepin County District Court there wasn't enough evidence to continue with the cases against those four men.

"We could not match up individual actors with the conduct that was witnessed," she said. "That's not to say that we approve or condone the kind of conduct that was involved here."

May 25: 6 arrested after water balloon attack on pedal pub riders

Fifth degree assault charges against Kurtis Wayne Johnson, 31, were dismissed. Jason Leonard Carlton, 42, Francis Wayne Bellanger, 26, and Mark William Dean, 31, each faced disorderly conduct charges that were also dismissed.

The men were allegedly involved in two attacks one May evening while biking. Police said they sprayed a slow-moving pedal-powered pub driver and passengers with high-powered water guns and threw water balloons at them. No one was injured, but a manager with PedalPub Twin Cities said it was a potentially dangerous situation.

Prosecutors did not dismiss fifth degree assault and disorderly conduct charges against 24-year-old John Davis Rock and are considering charging a sixth individual.