The deaths on Friday came as thousands of Palestinians held protests at several sections of the Israel-Gaza border fence. Gaza's health ministry said 38 others were wounded by live fire.
The ministry said another Palestinian was hospitalised in the shooting that came after the Israeli army said an attack helicopter and tank had fired at "armed suspects" along the barrier that separates Israel from Gaza.
Palestinian media said Samoudi was wounded while standing at her window as Israeli troops were firing tear gas and gunshots during a confrontation with residents of the city's Jaberyat neighborhood during the raid.
Palestinians in the Gaza Strip are preparing to mark the beginning of the Islamic holy month of Ramzan from Friday amid a deteriorating economic situation due to the COVID-19 pandemic.
Israel also lifted security restrictions on southern Israeli communities after the Egyptian-mediated truce took effect late on Sunday. Honduras is considering moving its embassy in Israel back to Tel Aviv, a year after moving it to Jerusalem.
"Launching an attack which may be expected to incidentally kill or injure civilians, or damage civilian objects, in disproportionate manner to the concrete and direct military advantage anticipated, is prohibited," she said. "Such attacks must stop."
Israeli forces opened fire on four Palestinians near the Gaza border fence on Saturday, killing the men, the Israeli military said.
"The killing of young people on the borders of the Gaza Strip is a continuation of the (Israeli) occupation's crimes everywhere, in the West Bank and Jerusalem," Hamas spokesman Hazem Qasem sa
The Palestinians denounced the move as "collective punishment" of the impoverished territory's 2 million residents, who have lived under an Israeli-Egyptian blockade since Hamas seized power from rival Palestinian forces nearly 15 years ago.