London Broncos continued their recent impressive form in the engage Super League with a crucial 10-24 victory over relegation-threatened Widnes Vikings.

The Broncos were sublime in attack and tireless in defence and thoroughly deserved the two points, while the Vikings were disappointing.

They lacked the desire and fight which had seen them make great strides in Super League over recent weeks and they will have to do some soul-searching if they are to get back on track in next week's Challenge Cup clash in Toulouse.

The Broncos' victory came courtesy of a super first-half performance.

They notched up a 22-point lead, which was too big a mountain for the Vikings to climb in the second period.

The Widnes defence was at times woeful and a series of mistackles gifted the visitors four easy scores.

Luke Dorn crossed for the opening score after he stepped his way through four Widnes defenders to race over in the corner.

Then Widnes second row Matt Whitaker failed to tackle London loose-forward Rob Purdham who strolled over for another.

The Vikings did hit back with some smart plays of their own but the London goalline defence was each time up to the task.

Things went from back to worse for Widnes just before half-time when Mark McClinden had too much footwork for the trailing Widnes tacklers to score and then one-time Widnes target, Thomas Leulaui, spun his way through to put the game beyond the Vikings' reach.

Paul Sykes knocked over his third conversion of the afternoon which added to the home side's misery.

Widnes looked a hungry outfit for the start of the second half, but some decisions did not go their way and they simply could not break down the Broncos despite the best efforts of John Stankevitch and Jules O'Neill.

Widnes' frustration finally began to tell on 61 minutes when Terry O'Connor interfered at the Broncos' play-the-ball and Sykes goaled to make it 24-0.

The Vikings saved the embarrassment of a whitewash late on with a try from Gary Connolly after he latched on to Daniel Frame's pass and then Owen Craigie crashed over in the corner on the final hooter.