SONA: 'It could only have been a jammer'

The disruption to cellphone signals that marred last week's State of the Nation Address (SONA) could only have been caused by a jamming device, it has emerged.

This comes as a Parliamentary probe is already under way into what government ministers are referring to as a "technical glitch", and the Democratic Alliance demands the Independent Communications Authority of SA (ICASA) probe the loss of cellphone signal during Thursday's SONA.