It is the second major EuroMillions win in the county in three weeks. Gareth, 40, and Catherine Bull, 35, from Mansfield, won £40m on 20 January.
Camelot said the identities of the latest winners would be revealed at a press conference later.
The prize is the seventh largest win in the UK, Camelot said.
A spokesman said: "It is fantastic news to have another UK winner so soon after Gareth and Catherine Bull from Mansfield won £40m."
Mr and Mrs Bull's win came from a lucky dip ticket.
The biggest EuroMillions prize was a £161m jackpot won by Colin and Chris Weir, from Largs, Scotland, in 2011.
Nine countries - the UK, the Republic of Ireland, Spain, Portugal, France, Belgium, Luxembourg, Switzerland and Austria - participate in EuroMillions.