Burj Khalifa was built mainly by people from South Asia. Press reports said in 2006 that skilled carpenters at the site earned UK£4.34 a day, and labourers earned UK£2.84. According to a BBC investigation and a Human Rights Watch report, the workers lived in very bad conditions. Often they were not paid for the work. Their passports were taken by their employers. It was said that they were working in dangerous conditions that caused high number of deaths and injuries. Companies not paying workers has been reported to the authorities several times.