Israeli soldiers shot and killed 16 people on the border with the Gaza Strip on a day of rallies reminiscent of the mass expulsion of Palestinians during the war that led to the founding of Israel in 1948.
Every year, usually on May 15, the Palestinians mark it Nakbaor a catastrophe, when seven decades ago more than 700,000 people fled or were driven out of towns and villages.
On Wednesday, large crowds gathered on the border with Hamas, which leads the enclave and supports the rallies. They announced a general strike and closed schools to increase turnout.
The Ministry of Health of the Gaza Strip reported that a total of 65 people were injured by live fire, shrapnel, rubberized steel balls and tear gas. It is said that the 65 included 22 children and three paramedics.
One year ago, Israeli snipers at the Gaza Strip border killed 60 people in one day as thousands protested against the opening of the US Embassy in controversial Jerusalem, which some Palestinians claim.
Since then, the bullets of the Israeli armed forces have killed more than 200 people and injured 7,000. A UN investigation found that Israel's actions may constitute war crimes, as snipers "fired at journalists, health workers, children and people with disabilities who knew they were clearly identifiable."
There were regular clashes between Israel and militants, which resulted in the danger of a fourth war between Israel and Hamas since the seizure of power in the Gaza Strip in 2007.
Wednesday's demonstrations were expected to be more muted than previous meetings. In March, Israel and Hamas reached an unofficial agreement, with Israel reportedly agreeing to stop the fire if Hamas prevented people from joining the border fences.
The Israel Defense Forces (IDF) reported that around 10,000 "rioters and demonstrators" had gathered in several locations along the border. "The rioters set tires on fire and throw stones. Several explosive devices were dropped in the Gaza Strip and several attempts were made to approach the security fence.
The IDF published a photo a big fire in a field allegedly caused by a fire. At several previous gatherings, Palestinians have provided gasoline cans to kites being flown into Israeli territory.
The marches took place in the cities of Ramallah and Bethlehem in the occupied West Bank, separated from the Gaza Strip.
Palestinian political groups and civil society groups have called for an end to the grave Israeli-Egyptian blockade against Gaza, calling for Palestinian refugees to return to their homes in Israel.
There are an estimated 5 million Palestinian refugees in the Middle East, including the majority of the Gaza Strip's 2 million inhabitants. Israel says that their return would affect the Jewish majority of the country.