People participate in a rally calling for reforms at Tahrir Square in Cairo, capital of Egypt, Sept. 9, 2011. Thousands of Egyptians went to Cairo's Tahrir Square Friday for a planned rally demanding more reforms, the first of its kind after the holy Ramadan month in August. Photo:Xinhua

Some Egyptian protestors broke into a building which houses the Israeli embassy in Cairo late Friday night.

Some pieces of paper were seen thrown from the windows of the building and flying in the air. Egypt's official MENA news agency said some protestors threw "confidential" documents from one of the embassy's office.

On Friday evening, a protestor took down the Israeli flag on the top of the building after other demonstrators destroyed a section of a concrete wall that protects the building.

Protestors also set some police cars on fire in the area as police used tear gas to disperse the crowds.

As many as 163 people were injured when protestors tore down parts of the wall around the Israel embassy, Health Ministry Undersecretary Hesham Shiha said, adding that about 100 of the injured received treatment on the spot.

Another 31 people were injured during the demonstration in the downtown Tahrir Square on the same day, Shiha said.

Tens of thousands of Egyptians took to the streets on Friday to demand more reforms. Several thousand of them gathered in front of the Israeli embassy in Cairo to protest against the killing of five Egyptian soldiers by Israeli forces on Aug. 18 at the border area.