The Queen will no longer travel to Rome this week after being admitted to hospital, Buckingham Palace has said.
The Italian presidency has confirmed the scheduled two-day visit has been cancelled due to "health reasons", Reuters reported.
More top news
After decades of struggling negotiations both activists and delegates are hoping for some form of landmark agreement.
World Rugby chairman Bernard Lapasset led the tributes, calling Lomu 'a giant' of the game.
Jaw bone fragment studied by British scientist comes from a smaller cousin of the better known Triceratops.