In the days since a fragile ceasefire took hold in the Gaza Strip, Israel has launched a major military operation in the occupied West Bank and suspected Jewish settlers have rampaged through two Palestinian towns.

The Israeli military said Wednesday its soldiers killed an alleged militant in Gaza whom it said posed a threat to its forces, as the ceasefire between Israel and Hamas stretched into a fourth day. It appeared to be the first time since the ceasefire began Sunday that the Israeli military said it struck targets in Gaza.

The Israeli military says it “continues to attack” inside the Gaza Strip as a dispute with Hamas delayed the start of a planned ceasefire.

U.S. President Donald Trump's Middle East envoy said on Wednesday he would be part of a team of "outside overseers" deployed in and along the Gaza Strip to ensure safety following a ceasefire between Israel and Hamas militants.

Aid trucks are getting into Gaza as part of the ceasefire deal between Israel and Hamas, but President Donald Trump expressed doubt the ceasefire will hold while signing executive orders Monday night.

President Trump said Monday that he's "not confident" Israel and Hamas will be able to maintain their ceasefire in Gaza. CBS News foreign correspondent Ramy Inocencio has more.