Canadian chemical alert was a coffee spill

A Canadian bio-hazard team was called out to investigate a possible chemical spill after a woman dropped a letter in some coffee.

The woman raised the alarm because she didn't understand why the letter had changed colour at her home in Edmonton, Alberta.

She told the emergency services the paper had turned from white to yellow and then to brown once she'd opened it and put it down.

Police cordoned off neighbouring houses while firefighters and chemical experts checked the letter, reports the 630ched website.

It didn't take them long to realise the woman had put her letter down on a coffee spill and that the liquid stain had been responsible for the colour change.

Story filed: 11:31 Friday 3rd October 2003