After a rally against cuts in London, a break away group caused a scuffle during a smaller demonstration outside the Savoy hotel.
The scuffle began after a protester took a doorman's hat. The top hat was later returned to him. No one is believed to have been seriously injured during the incident.
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The RSPCA has outlined in detail its policy on the shooting of seals that attack salmon stocks "as an absolute last resort".
We started the week warm, wet and windy but it will end much cooler and brighter.
The RSPCA is being criticised over its new welfare standards which permit salmon farmers to kill seals that attack fish stocks.