Gaza ceasefire talks end with no breakthrough as Ramadan deadline looms

US President Joe Biden warned of a "very, very dangerous" situation without a ceasefire deal by Ramadan and criticized Israel for failing to allow more aid into Gaza, increasing US frustration. Mediators from the US, Egypt, and Qatar are trying to buy more time as Israel and Hamas dig in their heels on truce talks. Hamas insists there will be no prisoner exchange before a permanent ceasefire and full Israeli withdrawal from Gaza.