Gaza conflict intensifies with rocket barrages and air strikes

Palestinians fired more rockets into Israel's commercial heartland on Thursday as Israel kept up a bombing campaign in the Gaza Strip and massed tanks and troops on the enclave's border.

Four days of cross-border fighting showed no sign of abating, and Israeli Prime Minister Benjamin Netanyahu said the campaign "will take more time". Israeli officials said Gaza's Hamas group must be dealt a strong deterring blow before any ceasefire.

Violence has also spread to mixed communities...