All Blacks legend Jonah Lomu has died at the age of 40.
A family spokesman told TV3: “I can confirm that Jonah Lomu died this morning … it was totally unexpected.
“Jonah and his family arrived back from the UK last night.”
Lomu had dealt with the severe kidney ailment nephrotic syndrome since 1995 which forced his premature retirement from international rugby in 2002.
After having a kidney transplant in 2004 he tried unsuccessfully to resume his professional career in Wales and France.
While his health seemed to improve he could not regain his former dominance and eventually retired from all rugby in 2006.
Since Lomu’s transplant failed in 2011, he became reliant on dialysis.
He won 63 caps for the All Blacks during an impressive career which saw him regarded as rugby union’s first global superstar.
A tweet from New Zealand Rugby chief Steve Tew read: “We’re all shocked and deeply saddened at the sudden death of Jonah Lomu.”
He added: “We’re lost for words and our heartfelt sympathies go out to Jonah’s family.
“Jonah was a legend of our game and loved by his many fans both here and around the world.”