Queue outside marijuana shop
Media playback is unsupported on your device
Video

Customers line up for 'pot shop' in Washington

Customers in Washington have been lining up for the first day of legal marijuana sales.

It is the second state to legalise the drug for recreational use, although some states already allow marijuana to be bought and sold for medical purposes.

Nichola Carroll reports.

Go to next video: See inside a legal US cannabis shop