Actress-turned-eco warrior Lucy Lawless has strapped herself to an oil tanker docked in her native New Zealand to protest against drilling plans in the Artic.

I'm embarrassed to tell you when the (police) helicopter was overhead I gave more than one Xena war cry

The former Xena Warrior Princess star has thrown her support behind a campaign against deep-sea drilling off the coast of her homeland over fears it could cause a similar disaster to the oil spill which wreaked havocoff the port of Tauranga in New Zealand last October (11).

She helped raise awareness of a petition against the drilling plans, but she has now gone one step further by joining six members of eco-group Greenpeace in boarding an oil tanker to protest.

The campaigners have chained themselves to the ship and are refusing tomove until the captain calls off his Artic-bound mission, according to TMZ.com.

In taped call to the website, Lawless says, "We know we're going to be arrested... but... this is a moral decision for us".

The star also admits she let out a Xena war cry as police helicopters circled above, adding, "I'm embarrassed to tell you when the (police) helicopter was overhead I gave more than one Xena war cry".