Israeli strikes kill 19 people in Gaza, tanks push north

Israeli military strikes on Gaza overnight killed at least 19 Palestinians, medics said on Saturday, while forces continued to push deeper into the Jabalia area, where international relief agencies say thousands of people are trapped.

Residents said Israeli forces continued to pound Jabalia, which is in the north of the enclave and is the largest of the enclave's historic refugee camps, from the air and ground.

The Israeli military published new evacuation orders on Saturday to two neighbourhoods on the northern edge of Gaza City, which also lies in the north of the enclave, saying the area was a "dangerous combat zone".

In a statement, Gaza's interior ministry urged residents not to relocate within northern areas of the enclave and also to avoid heading south "where the occupation is conducting continued bombing and killing every day in the areas it claims to be safe".

There has been no fresh Israeli comment on deaths but the military said in past days that forces operating in Jabalia and nearby areas killed dozens of Hamas, located weapons and dismantled military infrastructure.

The operation in this area began a week ago and the military said then it aimed to fight against Hamas and to prevent them from regrouping.

Palestinian health officials put the number of people killed in Jabalia over the past week at around 150.

On Friday, Israeli strikes hit four houses in Jabalia, killing around 20 people and wounding dozens, medics said. The Israeli military has sent troops into the nearby towns of Beit Hanoun and Beit Lahiya as well as Jabalia and ordered residents to evacuate their homes and head to safe areas south of the enclave.

Palestinian and United Nations officials say there are no safe areas in Gaza. They have also voiced concerns over severe shortages of food, fuel, and medical supplies in northern Gaza, and said there is a risk of famine there.

Israel's military campaign in Gaza has killed more than 42,000 Palestinians since it began a year ago, according to Gaza's health ministry, and has laid waste to the enclave.

In a statement on Saturday, Hamas said Israel's "massacre against the civilians" aimed to punish the residents of Jabalia for refusing to leave their homes. It also said it was a sign of Israel's military failure to defeat the group.

Israel has denied it targets civilians.

The armed wings of Hamas and smaller other factions said their fighters attacked Israeli forces in Jabalia and nearby areas with anti-tank rockets, and mortar fire.

Polio vaccination

United Nations officials said on Friday an Israeli offensive and evacuation orders in northern Gaza might affect the second phase of its polio vaccination campaign set to start next week.

The territory's health ministry announced on Saturday that the campaign would begin on Monday in central Gaza Strip areas and would last three days before moving to other territories.

Aid groups carried out an initial round of vaccinations last month after a baby was partially paralysed by the type 2 poliovirus in August, the first such case in the territory in 25 years.

As in the first phase, humanitarian pauses in the fighting in Gaza are planned, in order to reach hundreds of thousands of children.