Israeli airstrikes have killed at least 11 people in Gaza, local officials say, including in a blast at a tent encampment housing displaced families.

The IDF said the action was in response to ceasefire violations by Hamas.

A fragile ceasefire between Israel and the militant group has existed since October, but more than 570 Palestinians have been killed since then, according to Gaza's Hamas-run health ministry.

The latest strikes come just days before the first meeting of President Donald Trump's controversial Board of Peace.

Medics in Gaza said an Israeli strike on a tent encampment killed at least four people.

Meanwhile, health officials said another strike killed five people in Khan Younis in the southern part of the territory

Airstrikes also targeted what was thought to be ​a commander of the Islamic Jihad group, an ally of Hamas, in the Tel Al-Hawa neighbourhood in ‌Gaza City.

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An IDF official called the strikes "precise" and in accordance with international law, claiming that Hamas had repeatedly violated the October ceasefire.

Hamas spokesperson Hazem Qassem accused Israel of committing a new "massacre" against displaced Palestinians.

Israel and Hamas have repeatedly traded blame for alleged violations of the ceasefire deal.

Meanwhile, Nasser Hospital in Gaza has condemned a decision by Doctors Without Borders to pull out of operations over concerns about armed men.

Also known as MSF, the medical organisation said security breaches posed "serious" threats to its teams and patients.

The hospital said the increase in armed men was due to a civilian police presence aimed at protecting patients and staff.