Live streaming of Greenpeace Nordic activists occupying a Shell-contracted icebreaker in Helsinki harbour.

Dozens of Greenpeace Nordic activists have boarded and occupied a Shell-contracted icebreaker in Helsinki harbour as it prepares to leave for the Alaskan Arctic.

They're there to try to stop destructive oil drilling in the melting Arctic waters, which Shell wants to start this summer. Please join them and write to Shell telling them you want the Arctic protected, not exploited for profit. An amazing 380,000 of you have already done so - let's make it 500,000!

More news to follow. In the meantime, you can watch the live feed from the ship and  follow the latest news.