London Broncos coach Joe Grima has left the club just three games into the season for family reasons.

Assistant coach Andrew Henderson will take charge of the team on an interim basis as Grima returns to Australia.

Grima was appointed Broncos coach in May following Tony Rea's departure at the Hive Stadium.

"Due to some personal family circumstances out of my control I have decided to step down as head coach," he is quoted as saying by Sky Sports News.

"I must focus 100% on these personal issues at hand. It would not be fair on staff, our club, the players and supporters if I could not plan and lead our club to my full capacity."

The Broncos continue their Championship campaign on Sunday when they host Workington Town.