GAZA, Nov. 13 (Xinhua) -- A Palestinian youth died Tuesday of wounds he sustained during an Israeli artillery shelling in eastern Gaza City Saturday, medical sources said.

The death of Mohammed Qanou, 20, came as Israeli airstrikes continued in the Gaza Strip for the fourth day in a new cross- border violence flare-up, with Palestinian militant groups firing dozens of rockets at southern Israel.

As of now, the death toll in the Palestinian side during the cross-border hostilities has risen to seven, including five civilians and two militants. Ashraf al-Qedra, Hamas-run ministry of health spokesman, said that the Israeli attacks in Gaza wounded 45 people.

The latest Israeli airstrikes early Tuesday targeted a training site for Ezz el-Deen al-Qassam Brigades, the armed wing of Islamic Hamas movement, which controls Gaza and an open land. There were no reports of casualties yet.

An Israeli army spokesperson said that the strikes were aimed at a rocket launching site and a weapons cache.