A woman has been caught driving high on ice with two young children unrestrained in her car, as she went to pick up more children from school.

The woman from Langwarrin, Victoria, was driving a vehicle without number plates when she was pulled over by police at around 3.50pm on Friday afternoon.

As they attempted to pull her over they noticed two children in the backseat unrestrained.

A woman has been caught driving high on ice with two young children unrestrained in her car. She was pulled over in Langwarrin, Victoria, as she went to pick other children up from school

A three-month-old baby had a loosely fitted safety harness, while a three-year-old child wasn't wearing any seatbelt.

A drug test showed the woman was under the influence of methamphetamine.

The woman is expected to be charged on summons. It is not known if she is the mother of the children.

She is facing multiple charges including drug driving, driving an unregistered vehicle and driving an unsafe vehicle.

She will also face two counts of failing to have passengers (children) properly restrained.

Police will forensically examine the preliminary drug sample to confirm the presence of methamphetamine.