Michael Dunlop claimed his maiden four-stroke win at the International North West 200 today after the Supersport race was declared a result after two laps.

The Ulster rider was leading Bruce Anstey and Lee Johnston at the start of the third lap in terrible weather conditions when the race was red-flagged after four riders crashed, escaping serious injury.

It was Dunlop's second victory at the international road race following his 250cc victory in 2008 - a race he won less than two days after his dad and road racing legend Robert had been killed in a crash during practice for the same race.

Alastair Seeley finished fourth on his Gearlink Kawasaki on corrected time after starting from the second wave of riders.

Honda star Dunlop said: "I've a great team behind me and big thanks to PTR because they've built me a good 600 and we're getting there with it.

"I always keep fighting and I came back fighting today again.

"Fair play to all the spectators for watching the race in this miserable weather."

HM Plant/Padgett's Honda rider Anstey added: "I got a good start and that was the main thing.

"I was starting to reel Michael in a little bit again when the race got stopped.

"Conditions are tricky out there."

Seeley won Thursday's Supersport race from Dunlop by 1.3 seconds on corrected time after starting from the fourth row of the second wave of riders after failing to post a fast lap in qualifying due to machine problems and poor weather.

Persistent rain has led to long delays with no racing since the Supersport event was halted.