Palestinian news agencies report that Israeli soldiers shot and killed a Palestinian teenager from the Gaza Strip after he crossed into Israel to join in Arab "Land Day" protests.
The Israeli Defense Forces (IDF) says the soldiers fired into the air to keep protesters away from the border fence, but denies that they took aim directly at Palestinians.
The Ma'an news agency also reports "dozens" of Palestinian demonstrators were wounded. Land Day protests mark an event 34 years ago when six Israeli Arabs died during a demonstration against land confiscations.
Israel's border with the Gaza Strip has been mostly quiet for the past year. But in the last two weeks violence has flared again, as terrorist rocket attacks and gunfights with Israeli troops killed three soldiers and a Thai farm worker.