Sinai — Officials say dozens killed as forces push into northern Sinai; Egypt allows Gaza-Sinai Rafah border crossing to reopen.

Egypt poured troops into North Sinai Thursday and Friday in an offensive meant to tackle militants in the Israeli border region, but residents were skeptical, saying they had seen no sign of anyone being killed in what they described as a "haphazard" operation.

An Egyptian military source said on Friday that the armed forces had arrested six "terrorists" in the Sinai region, after suspected Islamist militants killed 16 Egyptian border guards on Sunday and drove a stolen armored car into Israel, which was then destroyed by IDF forces.