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Israel has carried out fresh strikes on targets in Gaza as militants there stepped up rocket attacks following the killing of one of its leaders, Bahaa Abu al-Ata.

The Palestinian group announced the death in a statement on Tuesday after Israel confirmed it had killed Bahaa Abu al-Ata, 42, in an attack.After the attack, shower of rockets were launched from Gaza into Israel.

Israel said air and ground forces hit sites used by the Palestinian Islamic Jihad (PIJ) group. More than 150 rockets have been fired at Israel.

Violence escalated after Israel killed PIJ commander Baha Abu al-Ata. Four more Palestinians were also killed. Israeli medical services said one Israeli man was injured by a rocket.

Israel has declared a special state of emergency for 48 hours in areas within 650 miles (80 kms) range surrounding Gaza.