The pilot of a helicopter which crashed in central Auckland while installing a Christmas tree has miraculously escaped without serious injuries.

The seven-storey-high tree was being put up near the Te Wero Island bridge connecting the Viaduct and Wynyard Quarter on the waterfront.

The crew and pilot are OK, Telecom, which sponsors the tree, said. A St John ambulance spokesman said it was taking one person to Auckland City Hospital with minor to moderate injuries.

Telecom wrote on Twitter: "Can confirm the helicopter that crashed was putting up our Xmas tree. We're really happy to confirm pilot and ground crew all OK."