Thousands of Hamas fighters have re-entered northern Gaza and are building up their military capability to fight Israel again, security officials have said.

The terror group has reportedly taken advantage of the ceasefire to re-enter their former stronghold of Gaza City under the cover of civilians returning home.

Unnamed military officials have told news outlets in Israel that Hamas is once again taxing the local population – including a levy on humanitarian aid – to pay their fighters.

They are also planting bombs and installing surveillance cameras in preparation for a renewed IDF offensive if the ceasefire does not hold.

It comes as a senior Hamas official said he would not have supported the Oct 7 massacre if he had foreseen the devastation that it would cause Gaza in response.