Ministers pressed by Labour over cyber-attack at Sellafield by foreign groups

Ed Miliband asks for urgent assurances about government and regulators' actions after vulnerabilities at nuclear site are revealed

Ministers are under pressure to explain the actions of the government and regulators over cybersecurity at Europe's most hazardous nuclear site after a Guardian investigation revealed disturbing vulnerabilities in its networks.

The shadow energy secretary, Ed Miliband, called on the government to urgently provide assurances" about Sellafield, after the Guardian revealed it had been hacked by groups linked to Russia and China.