Israeli Troops Cross Border Into Gaza

Israeli tanks and infantry have entered Gaza, launching a much anticipated ground offensive in a widening war on Gaza's Hamas rulers.

Major Avital Leibovich, an Israeli army spokeswoman, said it would be an extensive operation. "We have many, many targets," she said, adding that Hamas has been digging smuggling tunnels and other facilities. "To my estimation, it will be a lengthy operation."

Heavy gun battles were reported as troops crossed the border into Gaza. Local TV networks broadcast images of troops marching into Gaza after dark.

defense officials have said around 10,000 soldiers massed along the border in recent days. Heavy artillery fire in the early evening was intended to detonate Hamas explosive devices and mines planted along the border area before troops marched in.

Israel's offensive against Hamas had begun with a week of aerial bombardment of Hamas targets, in an attempt to halt Hamas rocket attacks on Israel.

Israel initially held off on a ground offensive, apparently in part because of concern about casualties among Israeli troops. Hamas leaders have warned that they have prepared a violent welcome. They have also threatened to resume suicide attacks inside Israel.

Israeli tanks and infantry soldiers entered Gaza after dark, but stayed close to the border area, witnesses said. Heavy artillery fire hit east of Gaza City, in locations where Hamas fighters were deployed. The Israelis were also backed by helicopter gunships.

The first week of fighting had claimed more than 460 Palestinian lives, while four Israelis were killed by rocket fire.

More details soon ...