A rider from Wigan has been killed after crashing during the Ulster Grand Prix at Dundrod.
Jamie Hodson, 35, was involved in a collision at the 'Joey's Windmill' section of the circuit, causing the race to be red-flagged.
His brother Rob Hodson was also involved but suffered no serious injuries.
A statement from the race organisers said: "It is with much regret that the Dundrod & District Motorcycle Club confirm that a rider was killed following a crash during the Dundrod 150 National race on Thursday 10 August.
"An experienced rider, Jamie was the reigning Manx GP Supertwins champion and this year achieved a top 10 finish in the TT Lightweight race.
"The Dundrod & District Motorcycle Club would like to express its sincere condolences to Jamie's family and friends and requests that their privacy is respected".
Racing was called off after another race, the Dundrod 150 Challenge, at Lougher's, was red-flagged.
The scheduled Supertwins event did not take place.