It’s not clear what type of toxic gas was used by the Egyptian military personnel to fill the tunnel.
Surveillance cameras have been installed throughout the crossing terminal.
As the tank rolled down the incline, it reportedly began to slip down and then fell -- and a shell being carried within the tank exploded.
The site of the attack was quite far from Islamic State's usual attack zone -- and quite close to Israel's southern border with Sinai.
The cellular phone service blackouts, which have been taking place for the past two weeks, are likely to continue, an IDF source said.
The new Egyptian dependence on Israel to maintain the integrity of their borders is diminishing Egypt's role as independent broker in the Middle East peace negotiations.
The Israeli forces lay in ambush until dozens of smugglers arrived at the border fence, placed ladders against the fence and began to dump to the Israeli side bags that contained very large quantities of drugs.
"You’ll have the son of ISIS and the grandson of al-Qaeda that will be fighting [for] this new Shi’ite force."
At least two of the rockets was identified as having been launched from a site in Egypt's Sinai Peninsula.
Control over the crossing was to be transferred to Fatah by Egypt within the next two days.
The Egyptian leader called for "brute force" in the escalation against the terrorists.
Egyptian President Abdel Fattah el-Sisi vowed a "brute' response to the attack on the mosque.
At least 200 worshipers were killed and dozens of others were injured in the attack on the mosque.
The IDF has increased security around the work on the ground to erect a barrier facing the Gaza Strip, adding special forces to the defense effort.
An IDF vehicle was damaged by the gunfire, but none of the Israeli soldiers were physically injured.
The three workers may have been taken to the Sinai area inside Egyptian territory.
Israeli aircraft appeared only after Egyptian Air Force pilots completed their own missions in northern Sinai against Islamic State terrorist forces near Rafah and Sheikh Zuweid.
Around the same time as the rocket attack on Israel, ISIS killed six Egyptian soldiers were killed and wounded dozens more in northern Sinai.
Both rockets exploded in the Eshkol Regional Council district.
What comes around goes around.
At least 23 Egyptian soldiers lost their lives and dozens more were wounded in the deadly Sinai attack by Islamic State jihadists.
The IDF said nothing hit southern Israel.
The IDF is checking if the rocket succeeded in crossing over into Israel or not.
ISIS is claiming it was a terror attack, and they are responsible.
Some Israelis were trying to find alternative routs to reach the Sinai beaches, possibly via Jordan.