Thousands of demonstrators marched in London today over the tax affairs of Prime Minister <name>David Cameron</name> which were revealed as part of the leak of the Panama Papers.

The protest started around 11:00 local time (UTC+1) on Whitehall opposite the police-guarded entrance to Downing Street, the Prime Minister's official residence. Just after 11:00, protesters blocked traffic on the northbound carriage in Whitehall. At 11:20, the police asked the protesters to move back on to the pavement, stating that they needed to balance the right to protest with the traffic building up. Around 11:29, the protest moved up Whitehall, past Trafalgar Square, along the Strand, passing by Aldwych and up Kingsway towards Holborn where the Conservative Party were holding their Spring Forum in the Grand Connaught Rooms hotel.

The protest was organised after it was revealed that <name>David Cameron</name> has profited from offshore investments held by his father, <name>Ian</name>, that were organised in part by <name>Mossack Fonseca</name>, the Panama-based law firm whose communications were recently published.