David Cameron ‘must take real action’ on havens

British prime minister David Cameron must take “real action” to crack down on offshore tax havens, opposition figures have demanded after a massive data leak exposed the scale of efforts by the rich and powerful to hide assets.

Mr Cameron’s late father was reported to be among names, including those of six British peers, three ex-Tory MPs and political party donors, named in relation to investments set up by Panamanian law firm Mossack Fonseca.

Downing St said it was a “private matter” whether the Cameron family still had funds in offshore investments and insisted Mr Cameron was in the vanguard of efforts to increase the transparency of tax deals.