JERUSALEM (AP) — Israeli rescue services report a bus explosion in Tel Aviv, unclear if there are casualties.
According to Haaretzcom, police suspect the explosion may be terror-related.
NEAR THE ISRAEL-GAZA BORDER (CNN) -- Israeli bombs and artillery turned buildings, tunnels and bridges in Gaza into rubble overnight into Wednesday in 100 strikes confirmed by Israeli authorities, while Hamas media boasted about their militants' rockets hissing off in the direction of populated areas of southern Israel.
Rumors of an imminent diplomatic agreement Tuesday between Hamas and Israeli leaders that could halt the thunderous explosions at least for a while have not become reality.
But diplomats continue their fervent efforts Wednesday in hopes the skies on both sides will fall peacefully silent and stay that way.
U.S. Secretary of State Hillary Clinton is expected to meet with Egyptian President Mohamed Morsy, who is working to broker a cease-fire. She is also to sit down with Palestinian Authority President Mahmoud Abbas.
She met for more than two hours Tuesday with Israeli Prime Minister Benjamin Netanyahu. Clinton is not expected to travel to Gaza, which is run by Hamas, considered a terrorist organization by the United States and other countries.
A rocket alarm howled over Ashkelon on the Israeli side shortly after 7:30 a.m. Wednesday, just minutes after Hamas' TV broadcaster al-Aqsa reported its militants' rockets striking there as well as in the towns of Sderot and Ashdod.
Since midnight 17 rockets out of Gaza have touched down in Israel, the IDF confirmed. Iron Dome intercepted 12 more.
CNN's Fred Pleitgen in Ashkelon heard two impacts but could not yet say if the rockets hit anything or were eliminated mid-air by Israel's Iron Dome rocket defense system.
The Israel Defense Forces overnight targeted "dozens of terror infrastructure sites," including the Ministry of Internal Security, which it saw as a "main command and control center." It took aim at a police compound, a "military hideout," and other targets it linked to what it called Hamas "terror activity."
The Israeli military also struck a media building, where it said Hamas "deliberately located" an "intelligence operation center," and a system of tunnels used to transport fuel.
Al-Aqsa claimed two of their journalists were killed, when an Israeli strike targeted their car. CNN called the IDF about the accusation and is awaiting a response.
The IDF also confirmed targeting bridges in central Gaza.
Gazan authorities have reported at least 139 total dead in the conflict as of Wednesday, Israel has reported a total of five killed as of Tuesday.
For hours at dawn Wednesday Palestinians could watch a fixed live image of day breaking over Gaza City flickering over state TV via a fixed camera. The scenes were deceptively serene.
But recorded video inserted into newscasts showed bomb impacts, ambulances, a funeral, residents putting out a fire and rescuers digging through fresh rubble in the darkness to search for the living and the dead. The images hurled the stark reality of war into the sunrise skyline scene.
Hopes for an imminent calm between Israel and Hamas were briefly raised then dashed Tuesday, as diplomats rushed to try to restore peace.
On Tuesday, Clinton offered Israel the support of the United States and expressed hope for a lasting solution as she spoke to reporters alongside Netanyahu at the prime minister's office in Jerusalem. She thanked Egypt and especially Morsy for their efforts.
"President Obama asked me to come to Israel with a very clear message. America's commitment to Israel's security is rock solid and unwavering. That is why we believe it is essential to de-escalate the situation in Gaza," she said. "The goal must be a durable outcome that promotes regional stability and advances the security and legitimate aspirations of Israelis and Palestinians alike."
There was a moment when it looked like the attacks might stop. A senior Hamas official told CNN a "calming down" would be announced at 9 p.m. local time (2 p.m. ET). But that did not happen.
Hamas spokesman Sami Abu Zuhri later said that Israel had not agreed to terms that would stop the fighting.
Similarly, Egypt's Morsy said Tuesday the "travesty of the Israel aggression on Gaza will end in a few hours." But a few hours passed, and Morsy's office told CNN not to expect any announcement.
A "calming down" could halt violence, but it is not the same as an official cease-fire or truce. Israel has said it wants a cease-fire agreement but has not indicated whether one could be imminent.
"Obviously, no country can tolerate a wanton attack on its civilians," said Netanyahu, standing beside Clinton. "Now, if there is a possibility of achieving a long-term solution to this problem through diplomatic means, we prefer that. But if not, I'm sure you understand that Israel will have to take