Israeli aircraft and naval vessels pounded targets across the Gaza Strip on Tuesday, killing at least 11 people and injuring 80, Palestinian health officials said, in a campaign to halt rocket fire by militants in the territory.

Israel launched the offensive against the Islamist group Hamas, which controls Gaza, following a wave of rocket launches by the group on Monday. Hostilities have flared across the Gaza border since the kidnapping and killing last month of three Israeli teenagers in the West Bank, which Israel has blamed on Hamas.

The Israeli security cabinet approved the call-up of 40,000 reservists, signalling a readiness to launch a ground operation. But analysts said the move was intended as a threat to back up a calibrated escalation designed to press Hamas to halt rocket fire while avoiding getting bogged down in a costly ground war. […]