In pictures: Conflict in Gaza

Israel has intensified its military offensive against Hamas in Gaza, a week after launching air strikes on targets across the territory.

Israeli artillery was fired into Gaza for the first time since the offensive began, hours before ground troops moved into the

As air strikes on Gaza continued, more buildings were damaged and at least 10 people were killed when a mosque was hit, local medics said.

Here, a Palestinian photographs an unexploded Israeli bomb, which landed in a house.

The continuing violence has prompted anti-Israeli protests around the world. In central London demonstrators symbolically threw shoes at the British prime minister's residence...

... while in northern Israel, thousands of Israeli Arabs marched in protest against Israel's military action.

However, at a demonstration in Tel Aviv, Israelis waved their nation's flag and chanted anti-Hamas slogans.

Israeli troops 'move into Gaza'

Israeli ground troops have started to enter the Gaza Strip, Israeli military officials have confirmed, a week after the offensive against Hamas began.

Hamas leaders have warned Israel
against launching a ground offensive

An Israeli military spokeswoman said the intention was to "take control" of areas from which Palestinian militants have been firing rockets into Israel.

A BBC reporter in Gaza says it appears to be a limited operation with 10 to 15 vehicles crossing the northern border.

Earlier, Israel intensified air and artillery attacks on the territory.

In one raid, at least 13 people were killed when a missile struck a crowded mosque in Beit Lahiya, Palestinian medics said.

Witnesses said more than 200 people had been inside the Ibrahim al-Maqadna mosque for evening prayers when it was struck.

Palestinian medics and Hamas officials said they believed dozens were injured. At least one child was among the dead, they added.

Militants in Gaza meanwhile fired more rockets into southern Israel on Saturday, one of which hit the port of Ashdod, injuring two people.