Despite the high number of students enrolling in engineering each year not enough of them went on to work in the industry, Science and Technology Minister Naledi Pandor said on Monday. Around 1,500 BSc Eng and B Eng students graduated from the country's universities yearly, but only half practised as engineers. "A lot of them go on to work in banks and other financial institutes. In any case, we need to quadruple the number of graduates, so that we have a larger pool to draw from," Pandor indicated. She was speaking at the launch of the United Nations Educational, Scientific, and Cultural Organisation Africa engineering week at the University of Johannesburg. "The lack of engineering capacity hampers South African development, resulting in a decline in the labour market, a decrease in the contribution of the agriculture and mining sectors to [the gross domestic product], and an increase in demand on the engineers with manufacturing and services-related technologies," she said. Pandor pointed out that there was a link between engineering infrastructure and economic growth.