NHK correspondent reports from Jerusalem

Israel's Prime Minister Benjamin Netanyahu has ordered a "complete siege" of the Gaza Strip after a bloody incursion by Hamas militants over the weekend.

NHK World's Tamura Ginga, currently in Jerusalem, answers questions from Newsline anchor Raja Pradhan about the situation in Israel on Tuesday afternoon, JST.

Pradhan: What's going on there?

Tamura: We're about 70 kilometers from Gaza, well away from the fighting but within range of rocket fire from Hamas. On Monday, we heard air raid sirens go off twice. I was at our hotel during one of them and had to evacuate to a shelter. We know a house near the city was hit, injuring one person.

The newspapers are filled with the pictures and names of hundreds of Israelis killed, both soldiers and civilians. They also feature prominently the dozens of people who were kidnapped and are now being held hostage in Gaza.

There is anger at Hamas over this attack, but we've also seen some Israelis condemning their government. They're questioning how their leaders could allow such a large incursion to slip through Israeli defenses.

For now, the prime minister has chosen to focus not on introspection but on retaliation. Air strikes are continuing to pound the Gaza Strip as Israel gears up for what Netanyahu has promised to be a "long and difficult war."

Pradhan: Turning now to Hamas, what do we know about the timing of this attack and what the group is hoping to accomplish?

Tamura: It began Saturday, one day after the 50th anniversary of the start of the Yom Kippur war.

At that time, Egypt and other Arab countries launched an attack on Israel during the Jewish holiday. This time, the attackers are limited to militants based in Gaza but there are wider implications for this region.

Israel has recently been stepping up moves to normalize diplomatic relations with Saudi Arabia. Hamas may have been anxious about one of the Arab world's major powers growing closer to its enemy and launched this surprise attack in response.

It also comes after months of increasing tensions and violence between Israelis and Palestinians, which have clearly hit a boiling point.

Pradhan: Israel is besieging Gaza and may send troops in. What should we expect over the coming days?

Tamura: Israeli officials have told the media all options are on the table.

But it's likely the ongoing hostage situation will complicate any direct attack by the military. We can assume Israel is choosing its next steps carefully.

Tamura Ginga reports from Jerusalem on Tuesday.

There are concerns about the humanitarian situation in Gaza as Israel says it's cutting off power and supplies. UN Secretary-General Antonio Guterres has called on the international community to mobilize aid deliveries. He also condemned Hamas's attack, and has urged all sides to practice restraint and protect civilians.

It's important to note this war has already killed over a thousand people in just a few days. If it drags on for weeks, or even months, the human toll could be astronomical.