The Israeli airstrike came in response to ongoing rocket attacks by Gaza-based militants.
The radical Islamic movement Hamas, which has ruled the enclave since June 2007, says that a six-month truce between Israel and Gaza militants expires today. The movement earlier said it saw no reason to renew the peace agreements "as long as Israel does not adhere to its conditions." Israel refused to extend the truce to the PNA-controlled West Bank, which Hamas had insisted on.
Israel insists the truce is indefinite and defense officials said the attack was a warning to Hamas.
One of the Israeli rockets landed near a house in Gaza's Jabalia Refugee Camp, located near a Hamas military training camp, killing the owner and injuring a family member. Two Al-Aqsa militants were injured in a separate Israeli rocket attack in the north of the Gaza Strip.
During the airstrike, Israeli forces also destroyed a car repair shop, which was believed to have been used to produce home-made rockets for attacks against southern Israel.
The airstrikes were the first on Gaza since the beginning of the truce.
Israel carried out a devastating offensive on Gaza in early March, which saw 120 Palestinians killed, many of them women and children.