Wellington Airport again closed by fog

Fog has again closed Wellington Airport.

An airport spokesman said the fog had rolled in about 3pm and no flights had been able to land since.

"Lots of cancellations and no arrivals at this stage. They would be able to take off but we don't have any aircraft here to take off."

Air New Zealand spokeswoman Pam Wong said four 737s were diverted to Palmerston North and another four such flights cancelled by 6pm.

Smaller aircraft flights were also cancelled meaning at least 1000 passengers were affected.

She said all the Air New Zealand flights affected so far were domestic but international flights expected after 11pm could also be diverted.

"Hopefully the weather will have improved but it's still a pretty bleak situation in Wellington and as long as it continues we'll have to keep cancelling or diverting flights.

It is just a week since Wellington Airport was last hit by fog while on Wednesday, Auckland Airport also had major delays caused by fog.

- NZPA