Fighter jets hit a house in the Bureij refugee camp, leaving four people dead, a medical source said.
Two children also lost their lives while several people were injured in another strike targeting a tent in the Maghazi refugee camp, the source added.
Artillery shelling was also reported in the Nuseirat refugee camp in central Gaza, but no information was yet available about injuries.
The Israeli regime has launched a genocidal war on the Gaza Strip since October last year, killing more than 44,000 people, most of them women and children, and injuring over 104,000.
The second year of genocide in Gaza has drawn growing international condemnation, with figures and institutions labeling the attacks and blocking of aid deliveries as a deliberate attempt to destroy a population.
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On Thursday, the International Criminal Court (ICC) issued arrest warrants for Israeli prime minister Benjamin Netanyahu and his former war minister Yoav Gallant for war crimes and crimes against humanity in Gaza.
Israel also faces a genocide case at the International Court of Justice over its brutal war on Gaza.
Source: Anadolu Agency