London, Aug 31 (IANS): The brother of Jeremy Corbyn, former leader of the UK's opposition Labour Party, was fined 10,000 pounds under newly-introduced coronavirus laws for organising an anti-lockdown protest in London, it was reported on Monday.

Piers Corbyn was among those who attended the 'Unite for Freedom' protest in Trafalgar Square on Saturday, the Metro newspaper reported.

Taking to Twitter on Sunday, the 73-year-old, who set up the controversial weather forecasting business Weather Action, said he had been handed the fixed penalty fine as "organiser".

In the tweet, Corbyn called the demonstration an "epic success".

Under the new laws, those attending a gathering of more than 30 people may be committing a criminal offence.

Hundreds of protesters, some of whom displayed anti-mask and anti-vaccination placards, gathered in Trafalgar Square on Saturday afternoon.

Officers from the Metropolitan Police handed out letters explaining the newly-introduced legislation to demonstrators as they marched down Whitehall.