Egyptian border and security authorities have arrested 23 Palestinians and Egyptians in the Sinai region, including one who was wearing an explosives belt and had crossed from Gaza to Egypt in an underground tunnel, security officials said Wednesday.

The U.N. nuclear watchdog on Wednesday put finishing touches on a report expected to confirm that Iran continues uranium enrichment activities, a finding that could trigger harsher U.N. Security Council sanctions against Tehran.

A suicide car bomber struck a police checkpoint Wednesday in the Shiite holy city of Najaf, killing at 11 people in the spiritual heartland of the militia factions led by radical cleric Muqtada al-Sadr.