UPDATE 19:50 The Opera has been canceled due to "unforeseen circumstances." We've had unconfirmed reports about the Ya Basta group still holding the bridge to the convention center. The lates report indicates they are no longer there. UPDATE 19:42 Demonstrators have apparently left the convention center along with delegates. UPDATE 19:39 Delegates are going to the Opera Square where a big party is waiting for them but three thousands protesters are already in the square and many more are joining and road blocks have been set up to stop the police entering the square. Thousands have gathered in the square. UPDATE from Tel-Aviv Reports of a completely successful shutdown of down-town Tel-Aviv are coming in. Demonstrators totally took over a square and held a moment of silence in solidarity with actions in Praha. UPDATE 18:43 Reports of mass arrests have begun. UPDATE 18:43 The "blue" section is growing in number. They tried to block the underground railtrack - used by delegates to leave the Center - but police managed to stop them. Meanwhile the white overalls are back in the square where the demo started this morning. UPDATE 18:17 Police heavily charged sections pink and blue that managed to enter the Congress Center area making nearly contact with the IMF delegates. Police stood idly for a while when only a stairway separated protesters from delegates on a balcony. Then riot police, previously deployed on the bridge, charged the protesters. We don't know of any injured but people were beaten badly. Our reporter had to interrupt the phone call because attacked by police.