Also, a market in Gaza City is reported to have been attacked and at least eleven people killed.
Representatives of Al-Awda hospital confirm that it has received ten bodies after an Israeli attack on a water collection point in nearby Nuseirat. Among the dead are six children, the hospital reports.
Ramadan Nassar, a witness who lives in the area, told AP that around 20 children and 14 adults were standing in line on Sunday morning to fill up with water. When the attack occurred, everyone tried to run away, but some were hit by Israeli rockets and fell to the ground, he says.
The Israeli military, which has recently intensified its operations in Gaza, says according to the news agency Reuters that it had intended to hit a member of the extremist movement Islamic Jihad in the area, but that an error had caused the rocket to fall "dozens of meters from the target".
On Saturday, at least 70 people were killed in the Gaza Strip and 208 were injured, writes the Israeli newspaper Haaretz.
According to the health authorities in Hamas-controlled Gaza, the death toll now exceeds 58,000 people. More than half of the dead are women and children.