Lower Hutt blaze suspicious - police

A large scrub fire in the hills above Lower Hutt on Monday night is believed to have been deliberately lit.

A police spokesperson said two teens were being spoken to about the blaze in the hills between Lower Hutt and Wainuiomata and which could be seen from many parts of Wellington.

The Fire Service said 10 appliances were fighting the blaze but it did not believe any houses were in danger.

However, witness George Bignall said some residents must have been worried for a while.

"There's houses dotted up there on a couple of driveways. Very worrying for the householders concerned," he said.

"They (the Fire Service) didn't seem too concerned about the fire spreading out over the hillside, they just wanted to keep it away from those immediate houses."

The fire was "spreading at a pace" but not roaring, Mr Bignall said.