Thousands of Palestinians are staging a mass protest along Gaza's sealed border with Israel with some burning Israeli flags, throwing stones and torching tires.
"Media reports suggest that on Friday, Israeli soldiers will once again be ordered by high command - in contravention of global law - to engage in sniper fire on Gaza residents who come within 300 meters of the border fence or engage in other non-life-threatening actions".
Many protesters left for midday prayers but larger numbers are expected to gather in five spots along the border on Friday afternoon.
The military said that demonstrators hurled an explosive device and several fire bombs near the fence in what it said was an apparent attempt to damage it.
Even the marches are coordinated by Gaza's Islamic militant Hamas, however, turnout is also becoming pushed by desperation among the 2 million taxpayers of the territory.
The marchers are protesting against the blockade, but are also asserting what they say is a "right of return" of Palestinian refugees and their descendants to what is now Israel.
In all, 35 Palestinians were killed in the past two weeks, 28 during protests.
Israel has accused Gaza's Hamas rulers of using the protests as a cover for attacks and says snipers only target the main "instigators".
No Israelis have been killed during the demonstrations, and human rights groups say the Israeli military has used live fire against demonstrators who pose no immediate threat to life.
In northern Gaza, a large Israeli flag was burned.
Gaza has been under an Israeli blockade for a decade and unemployment is approaching 50 percent.
Several thousand people gathered Friday at a tent camp east of Gaza City.
Israeli media reports have said Egypt, one of only two Arab countries to have signed a peace treaty with the Jewish state, had been negotiating with Hamas to seek to calm the crisis, but there has been no confirmation.
At least eight Palestinians were wounded, the health ministry in Gaza said, with one shot in the head. "We came here so the world can see us and know that life here is miserable, and that there should be a solution". Gaza's health ministry says an additional 3,000 have been injured. Gaza's Hamas-run health ministry said one Gazan was killed and another seriously wounded in the strike. All groups state military orders are criminal. It has said that soldiers fire live bullets as a last resort, in a "precise and measured manner".
The group has been criticized in Israel for publishing often anonymous testimony by current or former Israeli soldiers who have misgivings about their military service and treatment of Palestinians.
Rights groups have strongly criticised Israeli forces while pointing to unverified videos that have spread online of Gazans appearing to be shot, including one seeming to show a Palestinian targeted as he ran away from the fence while holding a tyre.
Gaza leaders have planned a series of so-called Marches of Return culminating in a planned million-strong march in mid-May, to coincide with Israel's 70th Independence Day, the opening of the US Embassy in Jerusalem, and Nakba Day - when the Palestinians mark what they call the "catastrophe" that befell them with Israel's creation.
Protests are to continue until mid-May, around the time the United States is due to move its Israeli embassy from Tel Aviv to Jerusalem.