Amazon says 23 million items were ordered from sellers on Cyber Monday, up 40%

Amazon on Tuesday said more than 23 million items were ordered from sellers on Cyber Monday, a more than 40 percent year-over-year increase.

The online retailer also said its fulfillment service delivered more than 1 billion items worldwide for the year.

"2015 was a big year for sellers on Amazon," Peter Faricy, vice president for Amazon Marketplace, said in a statement. "In fact, sellers added more new selection and shipped more items than in any previous year."