Three arrested in connection with North murder

Two men and a woman have been arrested in connection with the murder of 51 year-old David Calwell on a building-site in Derry this morning.

Assistant Chief Constable Sam Kinkaid warned both dissident republicans and loyalist were plotting further attacks.

The dead man appears to have been killed because he was the first one on the site this morning.

The real IRA are believed to be responsible for the bombing.