Horse-drawn carts are still used to transport commodities and agricultural products through Gaza's congested streets. While this is a necessary function, it also creates a hygienic issue that one group hopes to address with diaper-style bags to keep the roadways free of faeces. In addition to the smell and flies they attract, piles of manure are an unsightly blight, according to Saher Khattab, a municipal sanitary worker who pulls a horse-drawn cart to haul rubbish. The bags, attached to the rump of donkeys and horses that ply the streets, are intended to eliminate the problem at the source, at the same time collecting a source of natural fertiliser that can be used in nearby farm land. "We are keen to preserve a clean environment, keep our streets clean, and maintain a civilized situation," said Anwar Al-Ghawash, one of a group of activists promoting the initiative in Deir Al-Balah town in the southern Gaza Strip.