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Hello and welcome to News Hour, live from the BBC World Service in London. I'm Rebecca Kesbby.

After the emotional scenes yesterday in the Middle East as hostages were reunited with their families and hundreds of

Palestinian prisoners were released. Today the stark reality of the scale of the tasks ahead.

Is there a dangerous power vacuum emerging in Gaza? There have been reports of public executions

carried out by Hamas fighters in the streets of Gaza and clashes between rival gangs and Hamas.

So how might a chaotic security situation inside Gaza hamper efforts to get aid through to desperate civilians?

We'll get the latest from our correspondent in a moment.

First, save the children's Gaza humanitarian director, Rachel Cummings,

says aid isn't getting through fast enough.

We have now commercial supplies entering Gaza,

so there is some food available in the market,

and the prices are decreasing, which is obviously very positive.

It means people who have funds, who have some money, are able to access.

But still, we haven't received our supplies anything into Gaza since the beginning of March.

We're hopeful. That's going to change this week.

We have shortfalls in our medical clinics. We buy what we can locally.

We get some items from the UN where we can,

but obviously we also want our supply centre.

Well, this Gaza resident spoke to the BBC's Middle East Lifeline programme

about the state of the insecurity they now face.

After two years of war,

...