Two Mega Millions tickets sold in Maryland and Florida matched all six winning numbers and will split a $400-million jackpot.
The winning numbers in the Tuesday night drawing are: 11, 19, 24, 33 and 51 with a Mega Ball of 7.
The jackpot is the sixth-largest lottery prize in U.S. history, with a lump-sum option of $224 million.
The winning ticket in Florida was sold at a Sunoco convenience store in Merritt Island, Florida lottery officials said.
In a tweet, Maryland lottery officials said the winning ticket there was sold in Charles County, south of Washington.
The specific location of where the winning Maryland ticket was sold was not immediately released. Mega Millions changed its rules in October to help increase jackpots.