Israeli shells kill Palestinian

Israeli attacks on Gaza have killed 15 Palestinians since Friday

A Palestinian man has been killed and at least 15 others injured in an Israeli artillery attack in Gaza.

Israeli attacks on Gaza have killed 15 Palestinians since Friday, in what is its most sustained offensive since it pulled out of Gaza last September.

Israel has said it is responding to militants who have fired rockets into Israeli territory.

In other violence, Israeli troops have killed a Palestinian gunman in a raid near the West Bank town of Bethlehem.

According to an Israeli army spokesman, the man had opened fire on Israeli troops who had come to arrest him.

Retaliation fears

Reports say Sunday's shelling by Israel hit a security post near the town of Beit Hanoun.

Earlier, the Israeli army said it had fired shells at targets in northern Gaza following rocket fire into Israel.

Israel's Haaretz newspaper reports that the country's security forces have gone on alert, after militant threats to retaliate for the deaths.

More than 750 shells have been fired since Thursday, Israeli officials say.