 Police in Oman say four people have been killed and several wounded by gunfire at a mosque near the capital Muscat. Reports say worshippers have been gathering to mark Ashura, a Shia Islam day of mourning. Such violence is rare in Oman. The authorities in Mozambique say they will designate the largest piece of rainforest in southern Africa a conservation area. The Mabu forest's new status will protect it from mining and logging.