Lord Adonis says Ofcom must tackle 'deplorable' mobile coverage

Infrastructure adviser's warning comes as regulator reveals signal from all four mobile operators is available across just 43% of UK geographically

Urgent action is required by the UK communications watchdog to tackle "deplorable" mobile phone coverage, the head of the government's infrastructure adviser has warned.

Lord Adonis, the chairman of the National Infrastructure Commission (NIC), has written to Ofcom urging the regulator to put all options on the table, including changes to the law, to improve poor services across the country.