Primal Scream bassist Gary 'Mani' Mounfield has issued a forthright apology to his former Freebass bandmate Peter Hook for attacking him via social network site Twitter.

Since 2005 Mounfield and Hook, formerly bassist in New Order, have been working together on the long-gestating Freebass project. It also featured former Smiths' bassist Andy Rourke - who announced his departure from the group last month -- and Manchester-based singer Gary Briggs.

The band's debut studio set "It's A Beautiful Life" is to be released in the United Kingdom and Europe Sept. 20 via Hacienda Records/Essential. The record receives a North American release Dec. 7 via 24 Hour Service Station.

Late last week, however, Mounfield published a series of explosive comments on his official Twitter account in which he accused Hook of exploiting the death of Joy Division singer Ian Curtis.

Hook's latest group, The Light, is due to embark on a world tour this fall where it will perform Joy Division's classic album "Unknown Pleasures" in full. The tour, which includes dates in Australia, New Zealand and Europe, concludes with a 9-date U.S. trek wrapping Dec. 11 at the Music Box venue, Hollywood.

A spokesperson for the band subsequently confirmed that Freebass had split up.

"Three things visible from space, Great Wall Of China, Peter Hook's wallet stuffed with Ian Curtis' blood money, [and soccer team] Man City's empty trophy cabinet!" tweeted Mounfield last Thursday (Sept. 9), before slating Freebass' studio debut and describing the 10-track set as "where it belongs ... in the fucking bargain bin before it's even released."

Mounfield's Twitter account has now been deleted with Freebass' forthcoming Sept. 16 live show at the British Music Experience, housed within London's O2 complex, canceled.

Today, Mounfield issued a statement stating: "I wish to apologize unreservedly to Peter Hook and his family regarding comments made on a social networking site which was totally out of character for me."

"It was a venomous, spiteful reaction to a lot of things that are going on in my life right now and I chose to vent my frustrations and anger at one of my true friends in this filthy business, and ventured into territory which was none of my concern," the former Stones Roses bassist continued.

"The Freebass thing has tipped me over the edge and became the focus of my bilious rants. Twenty two years of being tripped up, face down in the mud and being kicked in the face with an iron boot will do that to the most stable of men. I hope I haven't blown a great friendship forever. Sorry Pete."

In response, Hook issued a statement in which he called Mounfield "a great friend of mine and he always will be."

"I have the upmost respect for him as a person and a musician. Have none of you lot ever fallen out with somebody you love?" the Joy Division/New Order founder member went on to say.