Mask-wearing pro-Palestine protestors have shut down London's Tower Bridge as they chanted 'from the river to the sea' ahead of a Downing Street march. People waved Palestinian flags and set off flares as they blocked traffic before a static protest near the PM's residence. They chanted 'Zionism, terrorism' and 'get your hands off Palestine' as Scotland Yard imposed Public Order Act restrictions and ordered the demonstration to end at 8pm. The protest in the capital has been organised by pro-Palestine group Intifada 87, who have planned to protest outside the BBC's headquarters before heading to Downing Street. Some 50 protestors...