Time runs out this week for the winner of a $1 million Powerball prize to claim the money.

Iowa Lottery officials say the winning ticket was bought April 11, 2018, at a Casey's convenience store in the Des Moines suburb of Nevada (nuh-VAYE'-duh). The ticket matched the first five numbers but missed the Powerball.

The winner has a year to claim the prize. Lottery officials say that means the purchaser will need to get to lottery headquarters in Clive by 4 p.m. Thursday.

Unclaimed prizes go into a pool for future prizes. The lottery says that in the 2018 fiscal year, more than $1.4 million in prizes went unclaimed in Iowa.