Two boys - aged 8 and 10 - were killed in an Israeli drone strike in the Gaza Strip, the family told AFP.
The attack took place near the so-called "Yellow Line", to which Israeli forces withdrew after a ceasefire came into effect on October 10.
According to a spokesman for the Gaza Civil Defense Service, the two children were killed on Saturday morning in Bani Suheila, east of Khan Younis in the southern part of the enclave.
The Israeli military said it had identified two suspects, "posing an imminent threat", who crossed the "Yellow Line", carried out suspicious actions and approached the Israeli military operating in the southern part of Gaza, which is why they eliminated them.
Earlier, the Gaza Health Ministry reported that 354 Palestinians have been killed since the ceasefire came into effect.