Protestors tell Rachel Aspden in Cairo that they've come back to "finish what they started" in January

As dusk fell tonight, Tahrir Square was packed with thousands of protestors demanding the fall of Egypt’s military government. On the third consecutive day of protests and after 36 hours of clashes with the security forces, there was a lull. Sweet potato, corncob and candy-floss vendors mingled with the crowds.

At twilight, ranks of police and soldiers attacked. The hollow thump of tear-gas canisters echoed from the streets to the south and east. Panic spread among the crowd and thousands took to their heels screaming “the army.”

A teenage girl ran up beside me, limping badly. She had lost a shoe, and her bare foot and her head were covered in blood. “We’ve run from Mohamed Mahmoud street, the army beat us with sticks,” she shouted. Thick plumes of tear gas rose over