towards the Israeli embassy in Kensington, in protest at Israel's attacks on the Gaza Strip
By London Paper 
AN anti-war demonstration ended in violence tonight as protesters clashed with riot police in l London.
The protest against Israel's attacks on Gaza saw one police officer knocked unconscious and two others receive facial injuries, a police spokesman said.
An initially peaceful demonstration ended with a group of protesters facing mounted riot police throwing missiles and smashing windows on Kensington High Street near the Israeli Embassy.
Riot officers from the Metropolitan Police force charged at the group of mainly young men.
Sticks and barriers were hurled at the officers by the group, many of whom were masked.
About 300 police in full riot gear had surrounded a similar-sized group of protesters pushing them up the street.
Organisers believed more than 100,000 people joined the massive march through central London in protest at Israel's attacks on the Gaza Strip.
Celebrities including musician Brian Eno and Eurythmics star Annie Lennox joined the procession from Hyde Park to the Israeli embassy in Kensington.
The march included rallies at the start and end addressed by speakers including Eno, Stevenson, former London mayor Ken Livingstone and Cherie Blair's half-sister Lauren Booth.
Booth said: "Tony Blair's only comment regarding the ceasefire has been to say that it can only take place after the tunnels in Gaza are destroyed.
"What he is suggesting means that after the massacre people will have no access to food, kerosene and medicines that came through those tunnels. That is not a ceasefire that is a slow agonising death."
Lennox said that it was important that people made their voices heard on the issue.
She said: "I'm taking a humanitarian stance. I do not believe in a militaristic approach. It's very important that people in society at large see that we can use our voices collectively."
Organisers - including Stop the War Coalition, the British Muslim Initiative and the Palestine Solidarity Campaign - said they hoped there would be no repeat of the ugly clashes with police that marred a demonstration in London last Saturday.
Lindsey German, Stop the War's convenor, said the march would be a passionate, but peaceful protest.
She added: "We are calling for an end to the massacre and for Israel to get out of Gaza and Palestine.
"We want the British government to take a much stronger position.
"There would have been outrage from governments around the world if this had happened anywhere else - the condemnation has been at best half-hearted."
On Sunday the Board of Deputies of British Jews will also hold a rally calling for peace in Israel and Gaza in Trafalgar Square in central London.
Air strikes by Israel's military hit more than 30 targets in Gaza on Friday, killing at least one child, while Hamas launched a barrage of rocket attacks on two cities in the Jewish state.