Iran, for example, has called on the British police and authorities to exercise self-restraint when dealing with the troublemakers. If the Iranian authorities were following their own advice during the various disturbances, one shudders to think what it would all have been like if they had not exercised restraint.
The Russians are advising the British to get tough with the various ethnic youths who do not wish to be part of British life. One cannot help feeling that they are confusing several different recent episodes. (No separate link, so need to scroll down on the BBC page.)
The Chinese fear for the Olympics (nothing like this would have happened in Beijing) and opine that the British police face two problems: cuts in funds and loss of credibility after the phone-hacking scandal. Again, a similar situation would not have arisen in China. Phone-hacking is completely authorized and done by the authorities only. Credibility cannot be lost.