https://www.thesun.co.uk/sport/4803210/mo-farah-splits-with-alberto-salazar/
LetsRun update: The Sun has a new article out on the 31st entitled, "Mo Farah is moving back to London to spend quality time with his family and NOT because he came under pressure to sever ties with Alberto Salazar".
https://www.thesun.co.uk/sport/4802926/mo-farah-back-to-london-with-family-alberto-salazar-split/
Here is Mo's twitter announcement .
https://twitter.com/Mo_Farah/status/925139862268899329