Whanganui Police are disappointed in the number of drivers using their phones while driving through a checkpoint.
The operation, conducted by the Whanganui Police Road Policing Group supported by officers from other departments, took place on June 17 on Great North Rd in Otamatea.
Over a two-hour period, eight people were observed using their phones.
Sergeant Colin Wright said drivers were seen making calls, texting and using other apps on their phones which they believed was okay.
One driver said they were looking at their maps on the phone while it was in their hand, Wright said.