A Palestinian boy carries a container as he walks on debris at the site of an Israeli strike a day earlier on a camp for internally displaced people in Rafah in the southern Gaza Strip on May 28, 2024. AFP
Mohammad al-Mughayyir, a senior official at the agency, said 21 people had been killed in an "occupation strike targeting the tents of displaced people west of Rafah".
Palestinian group Hamas also said an Israeli strike had caused "dozens of martyrs and wounded" in the area.
An Israeli strike on Sunday set ablaze a crowded camp in Rafah, killing 45 people, according to Palestinian officials, and sparking global outrage.
Israel launched its controversial assault on Rafah earlier this month, dismissing concerns for the safety of the 1.4 million Palestinian civilians then sheltering in the city.
Around one million civilians have since fled the city, the UN Palestinian Refugee Agency (UNRWA) reported Tuesday.
Israeli occupation forces also seized the Palestinian side of the Rafah border crossing between Egypt and Gaza.
Israel's brutal military offensive on the Gaza Strip since Oct.7, has killed at least 36,096 people in Gaza, 70% of them women and children, with more than 81,000 wounded, according to the Palestinian health ministry's latest figures.
* This story was edited by Ahram Online.
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