JERUSALEM: Palestinians in the Gaza Strip fired three rockets at neighbouring Israel on Sunday, the Israeli army said, without reporting any casualties.

An army statement gave no indication on where the first two fell, but Israeli media said they hit uninhabited ground.

Israel's Iron Dome missile defence system intercepted a third rocket, the army said in a later statement.

There was no immediate claim of responsibility from the Hamas-run Gaza Strip.

Hamas warned Israel in late June that its planned annexation of parts of the occupied West Bank amounted to a "declaration of war".

Two rockets were fired the next day at the Jewish state from Gaza, triggering a punitive Israeli air raid on Hamas installations in the Palestinian enclave.

On July 1, Hamas fired a volley of rockets into the sea as a warning to Israel not to go ahead with annexation, sources in the Islamist organisation told AFP.

Israel's proposal to annex its settlements in the West Bank and the Jordan Valley forms part of a broader US peace plan released in January.

The proposals foresee the ultimate creation of a Palestinian state on the remaining West Bank territory and the Gaza Strip.

But the plan falls far short of Palestinian aspirations, with a state on reduced territory and without east Jerusalem as its capital.

Hamas and Israel have fought three wars, with the latest conflict in 2014 killing 2,251 Palestinians and 74 people on the Israeli side.