A 56-year-old Irishman has died after collapsing during an amateur cycling event in Belgium.

The man, who was riding alongside his 29-year-old son, collapsed while taking part in the Tour of Flanders Cyclo event early this afternoon.

Organisers said the man who died was participating in the event for the 14th time and had not given any indication he was unwell until the fatal incident.

His son was taking part for the fourth time. The pair had opted for the 129km course (the other options are 71km and 227km).

The man collapsed while ascending the Oude Kwaremont, a famous hill on the course and at that point had covered more than 100km and was around 20-25km away from the finish.

Medical teams came to his assistance but were unable to save his life.

The Tour of Flanders Cyclo is a popular amateur event which takes place the day before the Tour of Flanders professional cycling race.

The Cyclo is in its 25th year and is attended by thousands of Belgian and international cyclists.