Which vehicle must give way?

Which vehicle must give way?undefined
Blue car
Red car

In New Zealand's traffic rules, regarding the regulations for two vehicles approaching an intersection without any signs or signals, or with the same signs or signals (in this case, stop signs):

When two vehicles meet at an intersection and there are no signs or signals, or there are the same signs or signals (in this case, stop signs), the vehicle turning right must give way to the vehicle turning left.