Al-Quds Brigades, military wing of Islamic Jihad, said it was responsible for firing the new salvo of missiles, adding that its attack was "in retaliation for US President George W Bush's visit to the region due later today."
The National Resistance Brigades, the military wing of the Democratic Front for the Liberation of Palestine, said it was responsible for hitting an Israeli military position with a rocket in eastern part of the strip.
Al-Nasser Salah-Eddine, the military arm of the Popular Resistance Committees in Palestine, said in a statement one of its fighters was killed in an Israeli air strike that targeted a group of its guerrillas near the town of Beit Lahia in the north of the strip earlier today. Amjad Abdel Dayem, 26, a member of a missile unit, was killed and four fellow fighter were wounded in the strike. The group confirmed that the raid was carried out after the unit launched missiles on southern Israel.Meanwhile, a spokesman of the Israeli Army declared blocking all checkpoints around the strip and the West Bank as a security precaution ahead of Bush's visit.
Israel has declared security alert ahead of the expected visit of the US president.
In a statement, another Islamic organization, Hamas, condemned Bush's regional whirlwind saying it "would be part of international schemes against the Palestinian cause."