Father recalls 'harrowing' moment he found out his son was lost at sea

The father of one of four crew members who died when the Cheeki Rafiki capsized mid-Atlantic has told a court of the "harrowing" moment when he found out his son had been lost at sea.
The yacht lost its keel as the crew were returning the 40ft vessel from Antigua to the UK in May 2014 when it got into trouble more than 700 miles from Nova Scotia.