Last night's Panorama documentary "Primark: On the Rack" drew more than 4.2m viewers to the BBC, and has prompted the fashion chain to defend itself further today (24 June).

The average viewing figure, supplied by the BBC to just-style, does not include the 310,000 people who watched it on BBC Scotland at 10.30pm.

The documentary, which unearthed child labour at unknown Primark sub-contractors in India, prompted the fashion chain to axe three factories in Southern India last week - saying they had broken its ethical code of conduct.

Last night, the BBC showed secret footage of how work on Primark garments had been outsourced to third parties in Southern India that used both home and child labour - both against Primark's ethical code.

In response to last night's exposé, the company has released a statement, which opens: "It is NOT acceptable for children to produce or work on garments for sale to Primark under any circumstances whatsoever."

The company goes onto say that production of its garments identified by the BBC was sub-contracted without its knowledge or consent by the factories concerned to third parties using unauthorised home workers, including children.

Primark has cancelled all new orders with the factories involved and is withdrawing all the items from sale - leading to criticism from campaign group War on Want who said this will lead to job cuts.

However, a Primark spokesperson told just-style yesterday that the decision to ditch the factories followed a 12-month process and was due to a lack of transparency and trust.

The company has now established a 'Primark Better Lives Foundation' to provide financial assistance to organisations improving the lives of young people including those identified by Panorama, and will add any profits made from the affected garments to this, it has said.