Two pyrotechnicians have been forced to jump off a fireworks barge on the NSW Central Coast after a New Years Eve display went horribly wrong.

Crowds were evacuated from the Terrigal beach after the barge caught fire just minutes into the New Year’s Eve fireworks show shortly after 9pm on Sunday.

NSW Fire and Rescue says the two technicians were helped by onlookers before being treated by paramedics.

An exclusion zone remains in place around the beach and emergency services were planning to let the barge float to shore before extinguishing any remaining fire.

-AAP