Israeli police flooded the streets of Jerusalem on Friday, fearing violence as Palestinians began marking the "Nakba" or "catastrophe" that befell them following Israel's establishment in 1948. Police said around 8,000 worshippers turned up for Friday Muslim prayers at the flashpoint Al-Aqsa mosque compound inside the Old City. Hundreds more were left outside the gates, with police refusing to admit men under 45 who did not hold a blue Israeli identity card, AFP correspondents said. Duration: 01:03