New Zealand cricketer Jesse Ryder has reportedly been put in intensive care following an attack outside of a bar in Christchurch.

The 28-year-old is thought to have a fractured skull and a punctured lung after being assaulted in the early hours of Wednesday morning.

Ryder is currently in a critical condition in Christchurch Hospital, according to TVNZ.

Police are expected to hold a press conference over the next 24 hours to clarify the situation.

Ryder, who has played 18 Tests and 39 one-day internationals for his country, recently signed a lucrative contract for Delhi Daredevils in the Indian Premier League.