Four killed in Israel air strike

Four Palestinians have been killed and seven wounded in an Israeli air strike on a car in Gaza City, doctors and witnesses said.

Two of those killed were Islamic Jihad militants, they said. Israel has confirmed it fired at the car.

In a separate incident two teenage brothers were killed in the Gaza Strip when an explosive device went off.

The brothers were close to the Bureij refugee camp. The blast cause is not known but Israel denied involvement.

An angry mob gathered at the Shifa Hospital in Gaza where the bodies of the four Palestinians killed in the car strike were taken.

Some reports said one of those killed was an eight-year-old child.

The Israeli military said it was targeting Islamic Jihad militants.

The BBC's Alan Johnson in Gaza said the Israeli air force often strikes at militants as they travel in cars in Gaza.

The attacks are part of a campaign aimed at combating the groups that frequently launch rockets from Gaza into neighbouring southern Israel.

The militants often say that they are retaliating for Israeli army actions in the Israeli-occupied West Bank. The rockets rarely cause serious injury or damage, our correspondent says.

Denial

In the second incident, police said it was unclear if the device was triggered accidentally or whether the brothers were handling it.

Palestinian witnesses said the brothers were not known to have been involved in militant activity.

The Israeli military denied involvement.

Security forces were searching the scene, some 4km (2 miles) from the Israeli border.