Help needed. switching motor on and off with maganet

[welshvicar]

Hi all,
I am new to electronics and need some help please.
I have a small project which needs a magnet to switch a small 9 volt motor on and off
I need to use the magnet to switch the motor on and stay on until I use the magnet to stop the motor.
I know I need a reed switch but not sure how to wire up to keep the motor running (some sort of relay?)
I would really appreciate any help or advice and any diagrams
Many thanks

[KilowattLaser]

This schematic should work. do you need it to be able to de-latch?