WASHINGTON: Seattle’s first and only recreational marijuana store had to close on Friday after running out of stock in just three days since Washington became the second U.S. state to allow pot sales to adults.

Cannabis City opened in Seattle on Tuesday with at least 10 pounds (4.5 kgs) of marijuana for sale, and by close of business Thursday it was all gone. A message on the store’s phone line said it would re-open on July 21.

There were widespread concerns that shortages of pot would afflict retailers this week after the state issued its first 25 licenses to outlets, under a heavily regulated and taxed system approved by voters in November 2012.

Some business owners planned to limit the amount of marijuana early customers could buy to try to make stocks last.