Four Palestinians killed in Gaza

Palestinian medics say at least three militants and a civilian have been killed in two Israeli incursions into the Gaza Strip.

An air strike on the southern town of Khan Younis killed one Hamas militant.

Three more people died in a separate raid near the Jabalia refugee camp in the north. Doctors said one of those killed was a student cycling to school.

The Israelis say they were responding to threats of rocket fire, and shooting directed at one of their border posts.