The U.S. government is banning all flights to and from Israel's main airport in Tel Aviv.
Their reasoning? On Tuesday, a rocket launched by Hamas in Gaza struck just a mile away from Ben Gurion Airport.
Israel is urging the U.S. to reconsider but the White House says it won't overrule the ban.
This comes just days after a Malaysia jet was shot down mid-air over a war zone in eastern Ukraine. All 298 passengers on board were killed.
There are dangerous fly zones all over the world and it might be a surprise to many that passenger jets fly through them daily.
So, why aren't these combat areas off-limits for flights?
CNN's Rene Marsh has this OutFront investigation.
U.S. Secretary of State John Kerry has arrived in Cairo in an attempt to negotiate a cease-fire between Israel and Gaza. Kerry said Monday the United States would provide $47 million dollars in humanitarian assistance to Gaza.
As the fighting rages on, the death toll continues to climb. Gaza health officials say about 565 Palestinians have been killed in the fighting, about 70 percent are believed to be civilians.
Israeli officials say two citizens and 25 soldiers have died. Among the dead soldiers were two Americans.
CNN's Polo Sandoval has more on why Americans are traveling to the Middle East to fight for Israel.
The Israeli security cabinet is set to meet Tuesday morning to review a ceasefire proposal put forward by Egypt.
Israeli officials say the proposal is being taken very seriously. But Hamas may not be willing to negotiate.
A Hamas spokesman describes Egypt's proposal for a cease-fire as a joke: "It's an initiative for the media. It's not a political initiative."
U.S. officials, meanwhile, tell CNN Secretary of State John Kerry is preparing a possible trip to the Middle East to lay the groundwork for a ceasefire agreement.
OutFront, the former Israeli Ambassador to the United States- and now a CNN Middle East analyst – Michael Oren.
Violence in the Middle East is escalating as Israel and Hamas are trading threats and warnings following the murder of three Israeli teens.
Thousands of Israelis gathered Tuesday to mourn the three teens who were kidnapped two weeks ago on their way home from school in the West Bank.
Israel says Hamas is responsible for their deaths - a claim Hamas denies.
Overnight, Israel stepped up its strikes against Hamas terror sites in Gaza, hitting 34 targets. Those strikes were in response to the 18 rockets fired into Israel from Gaza since Sunday.
OutFront, Israel's Ambassador to the United States Ron Dermer.
Residents of Gaza take to the street to celebrate the Israeli-Hamas cease-fire agreement. The agreement ends eight days of violence in Middle East that left nearly 150 deaths on both sides of the Israel-Gaza border.
OutFront tonight: Maen Rashid Ariekat chief representative of the general delegation of the Palestine Liberation Organization to the United States on the Palestinian reaction to the cease-fire.