GAZA CITY (Ma’an) -- Israel launched airstrikes on two sites in the Gaza Strip overnight Wednesday, less than 48 hours after agreeing to an Egypt-brokered truce.

Witnesses said that Israeli missiles landed on agricultural land, causing a fire and severe damage. No injuries were reported.

In a statement, the Israeli army said its warplanes targeted "a rocket launching site in the northern Gaza Strip and a terror tunnel in the southern Gaza Strip."

Earlier, a rocket fired at Beersheva was intercepted by the Iron Dome active missile defense system, the army said.

After the shelling, one rocket was fired at southern Israel from Gaza landing in an open area of Netivot, an Israeli army spokesman said.

No militant group has claimed responsibility for the rocket fire.

Four days of Israeli airstrikes killed 26 Palestinians and wounded more than 80 since Friday, and Gaza militants fired a volley of rockets into Israel, wounding eight Israelis.

Islamic Jihad and the Popular Resistance Committees said Tuesday they had agreed to an Egypt-brokered deal to end hostilities. An Egyptian official said the truce was in effect since 1 a.m. Tuesday morning.

Within 24 hours of the ceasefire, Israel bombed the northern Gaza Strip sparking a large fire that burned down a wood warehouse and damaged nearby homes, a Ma'an correspondent said.

The Israel military said the shelling was in response to eight rockets fired into southern Israel on Tuesday.