MANCHESTER, Iowa (AP) — A man accused of driving his vehicle into a loaded school bus in eastern Iowa wants to withdraw some guilty pleas.

The attorney for 42-year-old Monte Klink filed a motion Friday. Klink pleaded guilty in November to second-offense driving while intoxicated and to two counts of causing serious injury by vehicle. His sentencing is scheduled for Wednesday.

Authorities say Klink's sport utility vehicle collided with the bus near Manchester on Oct. 1, 2015. All 32 students were treated for mostly minor injuries.

Klink's attorney says his client was unaware that he couldn't be given a suspended sentence if convicted of serious injury by vehicle. Klink wants to retract those two guilty pleas.

Prosecutors say Klink's 45-day limit to file the motion expired Dec. 24.

More From AM 950 KOEL