A spokesperson for Israel Defence Forces said: "Hamas violated the operational pause and in addition fired toward Israeli territory."

Around 30 minutes after the ceasefire was due to end, the Israeli military said its fighter jets were striking Hamas targets in the Gaza Strip.

Israel-Gaza latest: Follow live

Images on social media showed large plumes of dark smoke rising over the densely built-up Jabalia refugee camp.

IDF spokesperson Daniel Hagari said multiple rockets had been launched from Gaza towards Israel.

The ceasefire was due to expire at 7am local time (5am UK) on Friday - with the IDF claiming it was "ready" and willing to continue military operations.

A total of 79 Israeli hostages have been released by Hamas over seven consecutive days, with hundreds of Palestinians freed from prisons in exchange.

About 140 hostages remain in Gaza.

Reaching agreements on hostage releases appeared to be getting harder as most women and children had already been released.

International mediators - including diplomats from Qatar, Egypt and the US - had been working to extend the temporary truce.

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