Portishead have released a new single in aid of Amnesty International today!

Titled 'Chase The Tear', the track was premièred on Zane Lowe's Radio 1 show last night and is available to download via 7digital right now.

A video to the song has also been made available on the official Portishead website.

Today is International Human Rights day marking the anniversary of the United Nation’s historic 'Universal Declaration Of Human Rights' on 10 December 1948.

In September, Portishead's Geoff Barrow said the Bristol collective are hoping to release their fourth album by the end of 2010.

He told BBC6music: "We're going to start writing and if all goes well it could be (out) in a year's time. That would be the most perfect thing to do."

(by Scott Colothan)