Police investigate woman's sudden death after roadside breath test in Geraldton

Police are investigating the sudden death of a woman who underwent a random roadside breath test in Western Australia's Midwest.

Geraldton Police were conducting random breath testing on Brand Highway in Mount Tarcoola, about 400 kilometres north of Perth, when the woman, aged in her 50s, was stopped just before 7pm on Monday.

Breath Test and Medical Emergency

A WA Police spokesperson said the woman was issued a driving prohibition notice and released from custody.