text: PRESS DIGEST - MOZAMBIQUE - AUGUST 26 . MAPUTO 1996-08-26 This is the leading story in the Mozambican press on Monday . Reuters has not verified this story and does not vouch for its accuracy . NOTICIAS - At least 20 people were killed when the two trucks in which they were travelling collided at Nhamavila about 160 km north of Maputo on Saturday , the Maputo daily Noticias said .