Two new Palestinian martyrs have been fallen on Sunday in new Israeli air strikes on the Gaza strip, raising the death toll in the past 348 hours to 18 people.

Two new Palestinian martyrs have been fallen on Sunday in new Israeli air strikes on the Gaza strip, raising the death toll in the past 348 hours to 18 people.

"An Israeli warplane launched a raid on a group of citizens northeast of Gaza City, killing one person," Adham Abu Selmiya, spokesman for the emergency services in Gaza said.

Abu Selmiya said the casualty was 60-year-old Adel Saleh al-Issi who was guarding a field when the air strike hit.

Earlier on Sunday, a strike on Jabaliya refugee camp, north of Gaza City, killed 12-year-old Ayub Asaliya who was on his way to school and also injured his seven-year-old brother Waafi, Palestinian medical sources said.

Shortly afterwards, another person was injured in a raid east of Gaza City, sources added. There was no immediate comment from the military.

Zionist air forces triggered the violence on Friday when they killed the leader of the Popular Resistance Committees (PRC), Shiekh Zohair al-Qaisi, sparking cross-border exchange in which another 15 resistance fighters were martyred, in the most deadly 24-hour period in more than three years.

Another 30 people were wounded, six of whom were in critical condition.

For its part, the Zionist army said in a statement that the continuous strikes were a “direct response to the rocket fore” at the southern occupied territories.

"Over the past 24 hours, over 45 rockets have hit communities in southern Israel- injuring four people, one severely, one moderately and two lightly."