Motor insurance provider Dial Direct has warned drivers suffering from colds and flu against getting behind the wheel.

The Coventry-based company quotes the road safety charity Brake, which says that tiredness is a factor in ten per cent of all road accidents.

Dial Direct managing director Michael Bennett adds that high-strength cold remedies can increase drowsiness. "Flu-struck people who drive as part of their their job should put the radio on, suck sweets or talk to passengers to stay awake."