London Broncos climbed up to third place in Super League as they made it four home wins out of four with a 12-try demolition job on Widnes Vikings.

Nick Bradley-Qalilawa got Broncos off to a flying start with a couple of tries in the first 16 minutes.

Zeb Luisi then went 80 metres following a London scrum in the shadows of their own posts.

And when John Kirkpatrick romped over for London's fourth try on the half hour there was no way back for Widnes, who slumped to their fifth defeat of the season.

The Vikings' problems continued and before the break Broncos had moved out of sight with three more scores in quick succession from Solomon Haumono, Luke Dorn and Tyrone Smith.

In the second half Mark Tookey and Jon Wells went over for further Broncos tries before Widnes got a consolation score from Aaron Moule after 51 minutes.

Kirkpatrick got his second try after 59 minutes before Steve Trebor bulled his way over from close range after 63 minutes.

An incredible piece of handling from Mark McLinden set up London's 12th try, Dorn finishing off the move.

Paul Sykes converted all of the second-half scores and finished with a total of nine goals from 12 attempts.

Widnes, who did not make a change in the second half due to injuries suffered, had the final word when Moule got his second try after good work from Sala Fa'Alogo.