Lucy Lawless Arrested in New Zealand

2/26/2012 3:41 PM PST

Lucy Lawless and a few of her Greenpeace pals were arrested after they had spent four days protesting aboard an oil-drilling ship docked in New Zealand today (well, it's Monday there).

The group had snuck aboard the ship a few days back in an effort to keep it from going out on a drilling expedition.

Lawless spoke to TMZ earlier this week and told us, "We know we're going to be arrested ... but ... this is a moral decision for us."