Police Ombudsman receives complaint over failure to interview Martin McGuinness over Bloody Sunday

The Police Ombudsman is facing calls to investigate why Martin McGuinness was not interviewed about Bloody Sunday.

In his report into the 1972 killings by British soldiers in Derry Lord Saville said Mr McGuinness was "probably" carrying a Thompson sub-machine gun on the day. Mr McGuinness denies this.