Manama: Three of the five Kuwaiti students who were involved in a car accident in New Zealand last week have been released from hospital, Kuwait's ambassador has said.

Jamal Al Enizi, Hamza Baqer and Ali Al Harbi were allowed to go home after medical staff was satisfied with their conditions, but the fourth, Salem Al Ajmi, remains under close observation in the hospital because of the severe injuries he suffered in the April 6 accident.

The fifth Kuwaiti, Abdullah Al Dossari, had died. His body was flown on Friday to Kuwait, Ambassador Jamal Al Ghunaim was quoted as saying by Kuwait News Agency (Kuna).

The envoy praised the New Zealand authorities for their "quick and excellent response" and for airlifting the injured to specialised hospitals.

According to New Zealand media, the horror on the roads this Easter pushed the holiday toll up to 12, the worst in 18 years, Stuff.co.nz reported.

The carnage on the roads over Easter also included several serious non-fatal crashes, including a van that rolled in Southland, flinging four children out of the vehicle.

UK Foreign Office on Friday confirmed that a British couple were killed in a car crash in New Zealand. Robert Anthony Hindle, 73, and his wife Ann, 64, from Altrincham, Cheshire, were involved in a crash near the town of Mossburn in the Southland area of South Island on Wednesday. A 27-year-old woman was charged with causing their deaths by careless driving, New Zealand police said.