At least 4 Palestinians killed in Gaza explosion – health ministry

At least four Palestinians have been killed by an Israeli tank shell fired in the southern Gaza Strip, according to the local health ministry. An Israeli military spokesman said the IDF was not involved in the explosion. "We have no knowledge of any Israeli strike in the area,” he said. Residents in the Rafah area say the four men were members of the Palestinian Islamic Jihad militant movement, Reuters reports, but this has not been confirmed by the group.