Brent East by-election

I've had a few people coming here looking for information on the Brent East by-election, which is probably because there doesn't sem to be that much information out there. I can't find any news of the date for it, if it's been announced yet, which means it's not likely to occur until September.

However, what I have been able to find is the web pages for the local Liberal Democrats and Conservatives. There isn't a Labour website for Brent - at least not according to Google and the Labour Party's own website.