The death toll from the Israeli assault on Gaza has risen to 29, including six children, the Palestinian health ministry said on Sunday.

The health ministry also said 253 people in Gaza had been wounded since the hostilities with Israel broke out on Friday.

At least four children were killed in a blast close to the Jabaliya refugee camp on Saturday, according to Hamas, the group that governs the Gaza Strip. 

The latest deaths bring the tally of children killed since Friday to six, and the total death toll among Palestinians to 24. At least 204 others have also been wounded, according to the Ministry of Health in Gaza.

In a statement on Sunday, Islamic Jihad confirmed that Khaled Mansour, its commander in the south of the Gaza Strip, had been killed in an Israeli raid on Saturday.

Mansour is the second high-ranking member of Islamic Jihad to be killed since Israel began attacking Gaza on Friday, when it assassinated the group’s commander in the north, Taysir al-Jabari.

Israel has warned that its campaign against Islamic Jihad could last a week, and its attacks on Gaza have destroyed apartment buildings and struck refugee camps.