Local witnesses confirmed that the Israeli artillery fired two shells targeting a Hamas military post in northern Gaza killing two Palestinians.
The "Great March of Return" protests sought the right of Palestinian refugees and their descendants, who according to the United Nations make up around two-thirds of Gaza's population, to return to their homeland inside what is now Israel.
What Happened: The Israel Defense Forces (IDF) have released a video showing a tank round explosion that killed two elite Hamas fighters, Haaretz reported August 7.
The Israeli army on Monday detained Palestinian journalist Ibrahim al-Rantissi from the West Bank city of Ramallah, according to his brother.
"The resistance can not allow the occupation to impose a policy of bombing sites and targeting fighters without paying the price", it said in a statement.
Human rights groups have accused Israeli troops of using excessive force at the protests.
Tensions have soared since Hamas launched mass protests along the border in March.
The United Nations and Egypt are now trying to secure a deal between Israel and Hamas for a lasting truce.