Good Friday Agreement

Nominees include the Lollipop Tree on Salisbury Plain, which features in Sam Mendes' WW1 film.

The former US senator, who helped negotiate the Good Friday Agreement, said that "problems will continue".

Secretary of State Hilary Benn hosted Tánaiste Simon Harris and Irish Justice Minister Jim O'Callaghan.

Senator Mitchell - the chairman of the 1998 Good Friday Agreement negotiations - urges young people to "stay and cement the peace".

The change means BBC Sounds will be available exclusively to UK audiences "which will offer better value for UK listeners", the BBC says.

The first reception to mark St Patrick's Day has been held at Downing Street.

The study reveals significant levels of trauma that continue to impact all communities across generations.

Government files show officials did not expect the arrangement, which lasted until from 2002 to 2007.