Godolphin racing manager Simon Crisford has summed up the doping penalties handed out as "a terrible day for British racing" and said the operation's image had been severely tarnished.
This is a terrible situation. It's an awful situation that Godolphin has found themselves in.
Mr Al Zarooni acted with awful recklessness and caused tremendous damage, not only to Godolphin and British racing.
I think it will take a very long time for Godolphin to regain the trust of the British public.
We're shocked and completely outraged by the actions he has taken.
More top news
PM spokesman's comments come following reports that the EU is secretly drawing up plans for greater military cooperation across the EU.
The Labour politicians put their alleged differences aside to jointly highlight how remaining in the EU could help fight climate change.
Late sunshine here and there this evening - but more cloud for southern Scotland, northern England and Northern Ireland again.