Israeli forces move into Gaza suburbs

Warplanes attack
Israeli warplanes pounded suspected Hamas positions in Gaza City, and navy gunboats fired at least 25 shells. Smoke billowed over buildings.

At least 20 Palestinians died Monday, some of them from wounds suffered on previous days, Gaza health officials said.

A girl, a doctor and a Hamas militant were killed in the northern Gaza Strip, said Basim Abu Wardeh, head of Kamal Adwan hospital.

The doctor rushed to evacuate the wounded from a building where two airstrikes had taken place and was killed by a third, Abu Wardeh said. Four other medics were injured, one critically.

The Israeli military said four soldiers were injured, one seriously, in what an initial inquiry concluded was a "friendly fire" incident in northern Gaza.

Israel has sent reserve units into Gaza to reinforce thousands of ground forces already in the territory, and fighting has persisted despite a U.N. Security Council resolution calling for a cease-fire. Egypt has assumed a role as mediator between Israel and Hamas.

Scoring points
Talks "are progressing slowly but surely, because each party wants to score some points," Hossam Zaki, the spokesman for Egypt's Foreign Ministry, told the British Broadcasting Corp. "We would like to be able to bridge some gaps and then proceed immediately to a cease-fire."

Zaki, however, said Egypt could not provide certain guarantees that Israelis seek, such as a halt to rocket fire.

"We'll enhance our efforts, but this is not an issue between Israel and Egypt," Zaki told the BBC. "It is an issue between Israel and Gaza, and this is something that will have to be worked out, as the (U.N.) Security Council says, in Gaza."

Much of the diplomacy focuses on an area of southern Gaza just across the Egyptian border known as the Philadelphi corridor that serves as a weapons smuggling route, making Egypt critical to both sides in any deal. The name of the corridor is an Israel military label.

Israel wants those routes sealed and monitored as part of any peace deal, and has been bombing tunnels that run under that border.

"I think the elements of an agreement for the immediate cease-fire are there," Blair said in Cairo. He added that, while more work needed to be done, he hoped to see a cease-fire "in the coming days."

Israeli Defense Ministry official Amos Gilad planned to travel Tuesday to Egypt for talks.

In Paris, French Foreign Minister Bernard Kouchner said European military observers should be sent to Gaza to monitor any eventual cease-fire.

Weapons warehouses
Israel's chief military spokesman, Brig. Gen. Avi Benayahu, said the fighting was "difficult and complex" and that Hamas militants were setting boobytraps and firing missiles from the rooftops of civilian homes.

"There is a whole city built underground in Gaza. Lots of big weapons warehouses," Benayahu said. Soldiers also uncovered a tunnel dug inside Gaza that led 300 yards into Israel, he said.

In Monday's fighting, the army said it carried out more than 25 airstrikes, hitting squads of gunmen, mortar launchers and two vehicles carrying Hamas militants.

It said ground troops came under fire from militants in a mosque. An Israeli aircraft attacked the squad, and Israeli troops then took over the mosque, confiscating rockets and mortar shells.

With Israeli troops surrounding Gaza's main population centers, Israeli leaders have said the operation is close to achieving its goals. Security officials say they have killed hundreds of Hamas fighters, including top commanders, but there has been no way to confirm the claims.

Desperate for food
Aid agencies said they have resumed relief operations in Gaza, but fighting still prevents them from evacuating the sickest people and reaching all those who need help.

The international Red Cross said it brought in seven truckloads of medical supplies and would distribute them to hospitals overwhelmed by the influx of patients.

International aid groups, however, say Israel is not doing enough to protect Palestinian civilians as well as aid workers. Tens of thousands of people have been displaced and many basic food items are no longer available, the office of the U.N. Humanitarian Coordinator said.

As many 88 percent of Gaza's residents now require food aid, up from 80 percent before the war, said Helene Gayle, president of the international aid agency CARE.

The three-hour lull in fighting that Israel allows for humanitarian aid to move around Gaza is not sufficient, she said.

More on Israel | Hamas | Palestinians

More from msnbc.com First Read: Palin on creationism, Clinton, Fey Scoop: Will Meyer bite into another ‘Twilight’ book? Ice addict heads for poles, Everest | Trek posts Were you paying attention? Take our weekly quiz World Blog: China puts foot down on 'Oba Mao' T-shirts Stimulus tracker: See where millions of dollars went On Twitter: Breaking news updates | Weird and wild

MORE FROM MIDEAST & N. AFRICA

Mideast & N. Africa Section Front

Palestinians to seek endorsement of statehood Bingo’s comeback erases divisions in Baghdad Iraqi Sunni Arab VP threatens to veto election law Iran cracks down on online opposition Reports: Iran ex-deputy minister jailed in Israel Iran's first lady makes rare speech at Rome summit Mideast & N. Africa Section Front   Add Mideast & N. Africa headlines to your news reader: