Four Palestinians were martyred by Israeli military action in the Gaza Strip on Saturday, authorities in the enclave said.
Two of the Palestinians were shot dead during clashes along the frontier while two members from Hamas were killed in an air strike, the health ministry in Gaza said.
The Israeli army claimed the air strike was in retaliation for a shooting incident on the border that left its soldiers wounded.
Hamas confirmed two of the dead were members of its military wing and pledged to respond to what it called an "Israeli aggression".
The Israeli military said it had hit a base belonging to Hamas after shots were fired at its forces along the border.
The army said "one soldier was moderately injured, and another soldier was lightly injured" when they came under fire during renewed protests.
Around 5,200 Palestinians had taken part in the demonstrations throughout the day.
Palestinians have participated in demonstrations along the Gaza border for more than a year, calling on Israel to ease its crippling blockade of the enclave.
At least 269 Palestinians have been martyred by Israeli fire since the protests began in March 2018, the majority along the border.
