Why has the Gaza ceasefire come to an end?

Fighting resumed between Israel and Hamas on Friday morning, ending a seven-day ceasefire between the two sides that had seen hostages and prisoners released and much-needed humanitarian assistance reaching the Gaza Strip.

Here's a look at some of the key questions around the latest developments.

Why did the ceasefire end?

An hour before the ceasefire was due to end at 07:00 local time (05:00 GMT), the Israel Defense Forces (IDF) reported that sirens were sounding for communities close to the Gaza Strip - it then said it had intercepted a rocket fired from the enclave.

An hour later, Israel's military said fighting had resumed, accusing Hamas of violating the terms of the agreement.