WELLINGTON: New Zealand services sector activity hit a six-year high in October as gains in new orders and sales pointed to solid economic growth, a survey showed on Monday.

The Bank of New Zealand-Business NZ's seasonally adjusted performance of services index (PSI) rose to 58.2 from an downwardly revised 56.4 in September.

It was the index's highest level since November 2007.

A reading above 50 indicates expansion in activity.

Four of the PSI's five sub-indices rose, while deliveries dipped but remained in expansion.

Last week, a companion manufacturing survey showed activity more strongly in expansion territory.