CASA GRANDE, Ariz. — An Arizona police chief is sending his patrol officers back to driving school after a slew of minor accidents involving the department’s vehicles.

The Casa Grande Dispatch (http://bit.ly/2vkbvtq ) reported Monday that Casa Grande Police Chief Mark McCrory says nine of his department’s police vehicles have been involved in accidents since April 5.

There were only five such accidents in all of 2016.

Each collision will cost the taxpayers a $1,000 deducible to the insurance company.

McCrory says four units were damaged in two separate incidents where officers driving vehicles bumped into parked police vehicles. Two were damaged in separate incidents where officers struck poles.

With the exception of a water-damaged vehicle and one of the vehicles that hit a pole, all of the cars are already back in service.