Amazon is telling customers that people purchased gifts for their nonexistent newborns.

Users of Amazon's delivery service tweeted about emails they received from the website Tuesday afternoon, many of them confirming that they weren't expecting and making light-hearted references to the situation, while others weren't as happy to receive the faulty message.

Both men and women appeared to get the messages.

"We are notifying affected customers. A technical glitch caused us to inadvertently send a gift alert email earlier today," an Amazon spokesperson told the Washington Examiner.

Amazon also apologized to customers for any "confusion" the company may have caused.