Illinois marijuana shops sold more than $10.8 million worth of recreational weed in the first five days of sales, the state said.

Customers made more than 271,000 purchases during that time. Now a handful of shops have halted recreational weed sales and plan to remain closed to the public for part of the week as they deal with product shortages.

Legal weed sales kicked off in Illinois on Wednesday with nearly $3.2 million in sales, marking one of the best showings of any state in the history of pot legalization.

Sales were strong throughout the week, with the lowest sales tally coming Sunday at almost $1.2 million, according to figures from the state. By then, some dispensaries had stopped selling recreational weed.

For many of them, it is uncertain when sales will start again.

“The demand was huge,” said Neal McQueeney, principal officer of Midway Dispensary near Midway Airport. “We knew we were going to run out. It was a matter of when, not if.”