Northern Irish businessman Eddie Haughey has been confirmed as one of those killed in a helicopter crash in England yesterday evening.
Three others also lost their lives when the aircraft came down in thick fog in Norfolk at about half past seven.
An investigation's underway.
Mr Haughey, who also had the title of Lord Ballyedmond, was the head of pharmaceutical company Norbrook Laboratories.
The crash happened near Gillingham Hall, a stately home owned by Mr Haughey.
Inspector Louis Provart from Norfolk Police says people reported hearing loud noises before the crash: