The Israeli military launched fresh air strike at Hamas compounds in the Gaza Strip on Wednesday. It marks the first Israeli strike in the enclave since a ceasefire ended 11 days of fighting last month.
Israel said that the strikes were in response to the launching of incendiary balloons from the territory that caused fires in fields in southern Israel.
A Hamas radio station said an Israeli aircraft attacked a Palestinian training camp in the Gaza Strip.
The renewed Israel-Gaza violence follows a march in East Jerusalem by Israeli nationalists that had drawn threats of action from Hamas.