A lucky Lotto player has yet to claim their $1 million prize after buying their ticket in Riverton.
The player has won the Division One prize from last night's Lotto draw.
Riverton Forum Lottery Kiosk owner Pete Sabatini said he expected excitement to build as the news filtered through to his customers.
"No doubt we'll have quite a few people coming in to check their tickets - it would be fantastic if the winner was one of our regular customers, but whoever it is we're very happy for them," he said.
The ticket is the first Division 1 ticket sold at kiosk this year.
On Monday, a retired Fremantle couple claimed more than $1.4 million in Lotto winnings with a "forgotten" ticket.