[Updated at 10:35 a.m. ET] A third Israeli airstrike targeted a militant group and killed one person, according to security and medical sources in Gaza.
No other injuries were reported. The strike comes a day ahead of the expected visit of Qatar's emir to Gaza.
[Posted at 6:12 a.m. ET] A pair of Israeli airstrikes early Monday hit Palestinian militants in northern Gaza, killing at least two and wounding Â four others - two of them critically, Palestinian faction sources said.
The strikes followed a mortar attack on an Israeli border patrol near the Nir Am kibbutz, according to a statement from Israel Defense Forces.
The IDF blames Hamas for all terrorist activity coming out of Gaza and has long targeted militants who fire mortars and rockets into Israel.