Martin Freeman has revealed the next series of Sherlock will be full of surprises and "so exciting".

The actor - who scooped the gong for outstanding supporting actor in a miniseries or a movie for his role as Dr John Watson at the Emmy's earlier this week - teased in an interview with BBC Radio Wales that he has been told "a bit" about the fourth series by writers Steven Moffat and Mark Gatiss.

Martin revealed: "It's going to be full of surprises for you, and for us and for everybody.

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"I think we just know to expect the unexpected now.

"What has been explained to me and Ben [Cumberbatch] and Amanda Abbington - my missus who plays Mary - has been very exciting. The plans they have got for the overarching series - oh man, it's just so exciting!"

The final episode of series three, The Last Vow, saw the shock return of Sherlock's nemesis Moriarty (Andrew Scott).

Martin, 42, - who was also nominated for outstanding lead actor in a miniseries or a movie for his role in the TV adaptation of Fargo at the Emmys - did not attend the ceremony as he admitted he had not expected to win.

Sherlock actually won three awards in total - with Benedict being named outstanding lead actor in a miniseries and Steven taking home the outstanding writing in a miniseries gong.

Martin said: "It keeps going from strength to strength really, we're all very proud of it, we're all very pleased to be in it and involved in it, I think as a nation it's one of the UK's finest exports."